Gran Turismo 7 Tuning Shop & GT Auto

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The DIY aspect of it might be cool, but I still don't think it's going to be available to many cars. If in pre-PS3 era games, RMing a car was easy, as it was just some changes to the exterior in way lower detail, now not only the detail has to improve, but also the interior has to be modeled.
Now, turning a road car into a full Gr.3 spec car, it sure takes a lot of work. As interiors go, it's not just adding bucket seats and a racing steering wheel, it's stripping everything else down, and then adding all the racing equipment we'd usually see on a race car. And this takes time and work, so I don't see it being such a widespread feature.
 
From what I've read, it does seem like the widebody will be used in combination with other parts (roll cage, aero etc.) to improve performance. Just how close to reality that they simulate this we'll have to wait and see, but there will probably by some midofiers to the cars grip and stability taking place with the widebody.

Like @DefNotJake mentioned, I'd like there to be some negatives, i.e. increased weight and drag, but we may not see that level of detail. Regardless, I expect the pro's will probably outweight the cons in higher performance cars as they should.
 
From what I've read, it does seem like the widebody will be used in combination with other parts (roll cage, aero etc.) to improve performance. Just how close to reality that they simulate this we'll have to wait and see, but there will probably by some midofiers to the cars grip and stability taking place with the widebody.

Like @DefNotJake mentioned, I'd like there to be some negatives, i.e. increased weight and drag, but we may not see that level of detail. Regardless, I expect the pro's will probably outweight the cons in higher performance cars as they should.
Yeah, It should just be balanced. Widebodies, wheel width, and track width should all definitely should have positives (like better grip/stability while cornering), but it only makes sense to add some negatives like more drag and added weight along with it like in real life. So for example, players who opt not to make the change may have other advantages else where, like on the straights.

In my opinion, it doesn't make sense to have a customization option that heavily changes the look of a car (for better, or for worse), and make every player feel like they will be at a complete disadvantage if they want their car to look a certain way. Sadly, I don't think Gran Turismo has ever had tuning parts that had a balanced set of advantages and disadvantages. I doubt this time will be any different.
 
As long as the pp system works fine, and widebody kits give the car more stability but also more drag at the same time, it can be easily balanced. In Gr.3 most of the cars already have widebodies from factory, so if we are able somehow to turn a road car into a Gr.3 car, the widebody shouldn't be a concern.
 
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Updated vehicle dimensions ;)

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  • roll cages can be applied to cars
  • wide-body kits will be like racing modification of past GT games
  • wheel diameter, rim width and offset options
Im pretty curious if there are specific real world brand tuning shops, and if you can make near replicas of cars for things like FD.
I'm also wondering about what the 'custom wing' option means.
 
Im pretty curious if there are specific real world brand tuning shops, and if you can make near replicas of cars for things like FD.
I'm also wondering about what the 'custom wing' option means.
Yeah, I'm hoping tuner parts will be available, but doubt we'll see them.
I posted in an old wishlist about at least getting parts common to certain manufacturers. Like the Gr.4 Gazoo Racing 86 steering wheel, being available for all Toyota/Lexus/Daihatsu models.
Having access to the RE Amemiya parts would be great.

As for widebodies, we’ll have to se if it upgrades the chassis, brakes, suspension to race spec. In the N500 class, the Gr.3/B road cars aren't that quick. The extra weight(possibly lack of carbon pieces and featuring full interior) hampers their performance.
I guess tyre width and a wider track, comes into play with stability and cornering for those cars. They've got the race suspensions.
 
I honestly don't see widebodies giving all that and for just 5k Credits. It literaly takes away the reason to have those available separately in the shop (and for way higher prices for each part).
 
Im pretty curious if there are specific real world brand tuning shops, and if you can make near replicas of cars for things like FD.
I'm also wondering about what the 'custom wing' option means.

I'm pretty sure this has been mentioned time and time again, but I'd gladly spend money on a fleshed-out Tuner Village expansion if it meant having more detail, past the point where GT4 went.

Having 'complete cars' on sale yes, but also being able to buy unique real-world parts like wheels, specific exhausts, and bumpers/aero made by those companies as well would be crazy cool. Something that couldn't be reasonably done due to the limitations of past ancient hardware.

 
The pricing of the widebody could be for the trailer or final. The BBS wheels, even in Yen, are way over priced.
 
From what I've read, it does seem like the widebody will be used in combination with other parts (roll cage, aero etc.) to improve performance. Just how close to reality that they simulate this we'll have to wait and see, but there will probably by some midofiers to the cars grip and stability taking place with the widebody.

Like @DefNotJake mentioned, I'd like there to be some negatives, i.e. increased weight and drag, but we may not see that level of detail. Regardless, I expect the pro's will probably outweight the cons in higher performance cars as they should.
Then the shop also has to display the effect of increasing weight and drag itself, not only the PP change.
Yeah, I'm hoping tuner parts will be available, but doubt we'll see them.
I posted in an old wishlist about at least getting parts common to certain manufacturers. Like the Gr.4 Gazoo Racing 86 steering wheel, being available for all Toyota/Lexus/Daihatsu models.
Having access to the RE Amemiya parts would be great.

As for widebodies, we’ll have to se if it upgrades the chassis, brakes, suspension to race spec. In the N500 class, the Gr.3/B road cars aren't that quick. The extra weight(possibly lack of carbon pieces and featuring full interior) hampers their performance.
I guess tyre width and a wider track, comes into play with stability and cornering for those cars. They've got the race suspensions.
So would be more than this?
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I'm pretty sure this has been mentioned time and time again, but I'd gladly spend money on a fleshed-out Tuner Village expansion if it meant having more detail, past the point where GT4 went.

Having 'complete cars' on sale yes, but also being able to buy unique real-world parts like wheels, specific exhausts, and bumpers/aero made by those companies as well would be crazy cool. Something that couldn't be reasonably done due to the limitations of past ancient hardware.

The small start should be returning the Tuning part name like above, but GT7 uses fictional tuning name of Understeer Engineering currently...
Im pretty curious if there are specific real world brand tuning shops, and if you can make near replicas of cars for things like FD.
I'm also wondering about what the 'custom wing' option means.
Again for above, in first 4 GT games, the tuning part uses the manufacturer's tuning brand. For Custom Wing, it's already on GT6:

The pricing of the widebody could be for the trailer or final. The BBS wheels, even in Yen, are way over priced.
While in opposite, the pricing for wide body in the trailer seems to be similar to most other racing games with customization (if the wide body is only a cosmetic modification and that other racing parts are sold separately, just like toy commercials).
 
I don't see a reason for the widebody cost to be a placeholder. A full RM in GT5 was what? 100k credits? That difference in cost would be enough to assume that RM and Widebody are not the same thing. The BBS wheels may or may not be overpriced. In real life a full set of wheels, surely isn't cheap. Those with center lock might be more expensive than the equivalent without it. Even if the 5000 Cr. for the widebody was a placeholder value, it wouldn't be too different than the final value. Surely not 10 to 20 times less than it should.

I'm quite confused with the whole "branded tuning shops" thing. There's nothing wrong with having a generic fictional shop that works for every car equally. If we can't see the parts that we are tuning, there's no point in having specific brands for them. The only thing that I wouldn't mind having, is branded exterior mods, like spoilers, specific body kits, exhaust tips, etc. But no need for a separate shop, just make it like the wheels, with the manufacturer name/logo of that body part on the left.
 
I'm quite confused with the whole "branded tuning shops" thing. There's nothing wrong with having a generic fictional shop that works for every car equally. If we can't see the parts that we are tuning, there's no point in having specific brands for them. The only thing that I wouldn't mind having, is branded exterior mods, like spoilers, specific body kits, exhaust tips, etc. But no need for a separate shop, just make it like the wheels, with the manufacturer name/logo of that body part on the left.
Don't know if you play GT3 already, but GT3 also has single, generic Tuning Shop for every car (what I thought when I first saw GT7's menu).
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Any car can enter said Tuning Shop there (no separate tuning shop), and the shop will adjust the brand related to the car you're in. If older game can at least do that (having a non-separate, single tuning shop but still display tuning brands), then why not for newer game? GT7 having the parts rendered on the shop probably can have the car parts being visible on the cars, like the NSX type R in the GT Auto screenshot.

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Don't know if you play GT3 already, but GT3 also has single, generic Tuning Shop for every car (what I thought when I first saw GT7's menu).
View attachment 1084351
Any car can enter said Tuning Shop there (no separate tuning shop), and the shop will adjust the brand related to the car you're in. If older game can at least do that (having a non-separate, single tuning shop but still display tuning brands), then why not for newer game? GT7 having the parts rendered on the shop probably can have the car parts being visible on the cars, like the NSX type R in the GT Auto screenshot.

View attachment 1084352

I didn't play GT3, but played GT4. Didn't GT4 have the tuning shop in the dealership or something? And named after the sports branch inside each brand? Like Ford Racing and such.

Anyways, I get what you're saying, but then I just ask "why". It ends up being just a nice little detail, that's probably not worth the whole process of licensing (and not every brand has their own "sports branch"). With livery editor, you can now slap a sticker of a certain brand on whatever car you like, and pretend it has parts by any aftermaket company there is.

Not sure if I got the last part. But just because PD has a picture of a certain object in the game, doesn't mean that object is modeled in 3D. In many cases, can just be a stock photo that doesn't represent entirely the object you are buying. I assume you were mentioning the NSX's exhausts? If so, that's nothing new. GT5 and 6 had custom exhausts, and was one of the very few parts that had any effect on the appearance of the vehicle. Any internal parts, be it for the engine, transmission, whatever, cannot be seen.

Honestly the one thing I would hope for, as tuning goes, is that they make the sounds of cars good after receiving an aftermarket exhaust. Not only good, but avoid using generic samples like in past games. If need, just make the original sound louder with the first stages of the exhaust, with the last being something straight from a race car ou make it sound like a straight piped car should. They have the samples, they can tamper with them after the stock sound is done.
 
I didn't play GT3, but played GT4. Didn't GT4 have the tuning shop in the dealership or something? And named after the sports branch inside each brand? Like Ford Racing and such.

Anyways, I get what you're saying, but then I just ask "why". It ends up being just a nice little detail, that's probably not worth the whole process of licensing (and not every brand has their own "sports branch"). With livery editor, you can now slap a sticker of a certain brand on whatever car you like, and pretend it has parts by any aftermaket company there is.
GT3 had a single tune shop accessed from the main map menu, depending on the band of vehicle you had selected when you went in, it would display the respective Tuning brand for that marque. GT4 had the tuning in each dealership as you said, and thne the Tuner section off the main map that had specific additonal tuner brands like HKS etc.

I don't see it being a difficult licensing issue as most of the tuning brands are owned by the parent brand, so it would typically be very simple to obtain the rights for these names where they have already been obtained (i.e. we know the liklyhood is that tuning brands such as NISMO and TRD will be in the game regardless).

For any marques that didn't have an inhouse tuning brand or where for whatever reason you couldn't obtain the rights to use it, you could use a generic tuning shop name. It would be better than "Understeer Engineering" but I do agree it's not a major detail or something that puts me off personally.
 
PD are giving us options to make the cars we want. If you want to make a "race mod" for your car with all the weight reduction, aero parts and performance upgrades, you can. All the tools are available to do that - PD don't need to create the "race mod" package themselves, you can do it yourself.
This is how I viewed the implementation of the 'widebody' and 'rollcage' options + the extreme tuning parts which i'm assuming are race-spec we could basically make our own RMs. If so combined with the livery editor that would be amazing.
 
Going back to GT Sport, the Gr.4 look easiest to perform. The cut-away shows exactly how they’re made.


Some road cars in GT sport, already have rollcages: Mini ‘65, Porsche GT3s, Fugu Z, Renault Gordini, Carrera ‘56. Now, those cars have full interiors. It’s probably possible to add roll cages and PD still keep the stock interior to save remodelling every car.

I posted in the Gr.4 Supra survey about that cars’ interior. The real GT4 Concept had a simplified interior: roll cage, stripped interior, but the dash was stock save for a racing steering wheel. That’s also another option PD could do.

Supra GT4 Concept
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Official Supra GT4 Customer car
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The question isn't if we will be able to turn road cars into "pseudo" race cars, it's if those cars can actually compete against actual race cars, let's say, in Gr.3.

When it comes to the exterior, it's quite easy to turn a road car into a Gr.4 car. The body parts in GT6 pretty much allowed that. The problem is in the interior, which has to be either heavily changed, which takes time, or not changed at all apart from a drivers bucket seat, steering wheel and dials, which in this case people will complain it's not realistic. For Gr.3 the exterior mods are more noticeable, but widebodies can make it possible, while the interior problem still remains.

Will they go through all that trouble for every road car? Or will it just be a select few that can be turned into race cars?

Some road cars in GT sport, already have rollcages: Mini ‘65, Porsche GT3s, Fugu Z, Renault Gordini, Carrera ‘56. Now, those cars have full interiors. It’s probably possible to add roll cages and PD still keep the stock interior to save remodelling every car.
Having roll cages doesn't make them race cars. They all lack everything else. The Fugu Z is a tuned car, and we will probably not be able to do much more to it, apart from some engine upgrades and such. The Mini, the Gordini and the Carrera are just too old and too slow to fit in any race class we have so far. Maybe it they add a Gr.5 for old/slow cars (which would actually work, given how many classics we have seen so far).

I don't see simply not bothering with a new interior being the solution, since it will just look weird seeing a car with stock interior battling with real GT3 cars. Olders cars, like the F40, I can see becoming a Gr.4 car, since it already has a very simple interior. For modern cars, they could solve the back seats problem by just doing what Mercedes did with the CLK DTM:

1633702015684.png
 
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Does a car need carbon ceramic brakes, a high powered engine, slick tyres, a robust aero kit, weigh less than 1000kg etc. to be a race car? No.

Race cars are just cars, albeit cars built/tuned to race, some are more highly tuned and high performance than others.

Of course, if the idea is to take some road cars and be able to tune them to Gr.3 or Gr.4 levels etc. then they should be competetive within those groups when tuned to that level. But I imagine you'll be able to tune cars to varying levels of performance rather than just, it's race modded, it's therefore Gr.4 class.

They don't need to completely change the interiors in order to acheive the effect of turning your production car into a car that can complete in Gr.4. It would help to have those options, certainly for immersion and customisation, but it's not essential.

If some cars competing in Gr.3 or 4 have standard interiors to the road cars that won't ruin the game. It'd be better to have the option to see the stripped out interiors etc. but it's not essential to allow the car to compete.
 
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Well, a stock road car can be a race car then. So PD doesn't even need to bother giving us mods to turn road cars into actual race cars, right?

So, are we having a serious discussion with some kind of basis on "what" is a race car, or on what anyone "believes" is a race car? What has the debate been about after all? Turning a road car into a race car that fits any of the existing categories (Gr.1 to 4) or a classeless race car? Sure, the lack a proper racing interior is not game breaker, but after the complains of "lack of immersion" caused by some VGTs taking part in Gr.3 and Gr.1 races, I assume it will be the same, plus PD will end up being accused of being lazy for not doing anything to those interiors.

What I'd like to know, is what people actualy want. People are somehow hopeful that they can turn every road car into a full race car, which I doubt will be the case.
 
Does a car need carbon ceramic brakes, a high powered engine, slick tyres, a robust aero kit, weigh less than 1000kg etc. to be a race car? No.

Race cars are just cars, albeit cars built/tuned to race, some are more highly tuned and high performance than others.

Of course, if the idea is to take some road cars and be able to tune them to Gr.3 or Gr.4 levels etc. then they should be competetive within those groups when tuned to that level. But I imagine you'll be able to tune cars to varying levels of performance rather than just, it's race modded, it's therefore Gr.4 class.

They don't need to completely change the interiors in order to acheive the effect of turning your production car into a car that can complete in Gr.4. It would help to have those options, certainly for immersion and customisation, but it's not essential.

If some cars competing in Gr.3 or 4 have standard interiors to the road cars that won't ruin the game. It'd be better to have the option to see the stripped out interiors etc. but it's not essential to allow the car to compete.
This. It’s about tuning. Same as in GT4. There is a tuning Championship. We don’t know where our tuned cars will compete. We only know Kaz says we can add rolll cages and body kits to create the same effect of racing modification.

Its a PP system this time, instead of Gr.N. From the OP pics, the NSX is customised and is still 473, Not Gr.4. Again, we don’t know how far we’ll tune, but it doesn’t mean we can’t have the same immersion as if we tuned our real cars with a roll bar for track racing regulations.

Well, a stock road car can be a race car then. So PD doesn't even need to bother giving us mods to turn road cars into actual race cars, right?

So, are we having a serious discussion with some kind of basis on "what" is a race car, or on what anyone "believes" is a race car? What has the debate been about after all? Turning a road car into a race car that fits any of the existing categories (Gr.1 to 4) or a classeless race car? Sure, the lack a proper racing interior is not game breaker, but after the complains of "lack of immersion" caused by some VGTs taking part in Gr.3 and Gr.1 races, I assume it will be the same, plus PD will end up being accused of being lazy for not doing anything to those interiors.

What I'd like to know, is what people actualy want. People are somehow hopeful that they can turn every road car into a full race car, which I doubt will be the case.

My examples of the road cars with cages. Why can you not see that those cars are a step away from competition cars? They’re Actually race cars for the street. What is your concern? You might be misunderstanding something. I’m not sure.

If I can do this,
B6F063CB-E0BF-4AE7-A10C-E136701AD95B.jpeg

which we could do for every road car. I tuned every part that can’t be seen, it just needs a roll cage, to look like this
E6A307CF-1712-4A36-A79C-12B722756E09.jpeg


You’re going to read about complaints, whether we get all the tuning options or not. Just because you can’t see all parts being available, doesn’t mean they Won’t be available.

edit: You do know PD have Nostalgic car events. Whether the cars can beat a Beetle or GT40, they still have a category to race in. Plus, we have had FIA Nations races with such cars.
The Mini is pretty much race car based. It has the roll cage and front skid plates, to replicate a rally car(which we got in GT2). The new/old Mini 1.3, didn’t have such parts.

Besides, we can race nearly every car versus a Gr.1, in Custom Race. Just the Gr.X cars can’t be used for multi-class in GT Sport.

Theres also another point. Outsourcing.

In an interview, one of the designer/renderer/programmer said she worked on the interior(I think the S660 or Tundra). If PD have outsourcing for interiors and roll cages, I’m sure all cars could have them.
there are supposedly 420+ cars. If most or all car coming from GT Sport, we have about half that 338 as Road cars and half as race cars. Minus the cars I mentioned above and minus some VGT cars. Add whatever new road cars to race cars( Mustang Shelby GT350, Ford GT GTE LM) who’s to say those road cars won’t have roll cage options. Sure, it’s possible all cars may not get roll cage options, but they just might. The outsourcing crew might be able to get it done.
 
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I'm not bothered at all. :lol: I just find it weird that the widebody option has been compared to RM in previous games, and labeled as the "new RM". Then I find it weird that suddenly, people start believing that widebodies will be available to almost every road car, and that every road car can get a similar treatment to what RMs did in GT5, turning road cars into full race cars.

I mean, the whole debate was about the ability or not to convert a road car into a full race car, the same way RM did. And RMs are pretty much the same as the fictional Gr.3 cars in GTS, full race cars based on road cars, making them new cars. Do I believe we can turn a road car into a Gr.3 cars, like RMs did in the past? No, but we will see. Do I believe that we have more options that can make a road car closer to a race car/time attack car? For sure. Will they have the same level of aero that we see on Gr.3? We shall see. Can we make a road car very similar to a Gr.4 car? For sure, we could kinda do it in GT6, with exception of the roll cages and modified interior.
 
Well, a stock road car can be a race car then..
Yes, there are many stock road cars that are also race cars. I assume we’re defining stock as unmodified to how it left the factory.

So PD doesn't even need to bother giving us mods to turn road cars into actual race cars, right?
I’m not sure what this comment is aimed at, but clearly no. What does the definition of a race car have to do with the ability to tune and modify your car to be faster?
So, are we having a serious discussion with some kind of basis on "what" is a race car, or on what anyone "believes" is a race car? What has the debate been about after all? Turning a road car into a race car that fits any of the existing categories (Gr.1 to 4) or a classeless race car?
It helps to understand what a race car is when discussing tuning cars to race. I don’t think/want GT7 to only feature race cars that slot into Gr.4-1, anything can be a race car after all and I don’t want every tuned road car to slot into those classes either. Hopefully the PP system is fit for purpose and can be a better guide of performance for the Career mode.
Sure, the lack a proper racing interior is not game breaker, but after the complains of "lack of immersion" caused by some VGTs taking part in Gr.3 and Gr.1 races, I assume it will be the same, plus PD will end up being accused of being lazy for not doing anything to those interiors.
I think we’d all like every car to have a modifiable interior, but I don’t expect that to happen.
What I'd like to know, is what people actualy want. People are somehow hopeful that they can turn every road car into a full race car, which I doubt will be the case.
I think we’ll be able to turn almost everything into a race car, cars that aren’t already race cars that is, but just not with the full aero/ wide body mods. It’ll be interesting to see what we get.
 
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I expect widebody and other car body changes/additions to be exactly like GT6, available on about 50 cars absolute tops. Modelling those differences takes a fair bit of work.
 
We’ll, one major customisation option I hope is for real, the licence plate removal. The custom NSX is missing that number plate up front. It’s on the stock model, but not on the car in GT Auto. Some road cars don’t have a number plate at all(Focus, Mustang Shelby GT350, LC500, Viper, Tundra, C7). Would be much appreciated with and without changing the front bumper bar.
 
This. It’s about tuning. Same as in GT4. There is a tuning Championship. We don’t know where our tuned cars will compete. We only know Kaz says we can add rolll cages and body kits to create the same effect of racing modification.
Don't recall any tuning championship in GT4, iirc the last time the opponent had tuned cars is GT3's Like the Wind, in the Vipers or such. But iirc there are no tuned cars again in GT4 or later, the opponent cars are all stuck. I do want to see tuned cars (or RMed ones) again as opponents though, yeah the car variation has grown from GT1 days, but still want more variation as opponents too, along with stats to show the opponent car's powers:
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As well as for example, for manufacturer events (high level), a mix of actual race cars and fully tuned stock cars as RM, such as in Z heritage, there's both Z GT500 '06 and RMed fully-tuned 370Z racing or such.
Its a PP system this time, instead of Gr.N. From the OP pics, the NSX is customised and is still 473, Not Gr.4. Again, we don’t know how far we’ll tune, but it doesn’t mean we can’t have the same immersion as if we tuned our real cars with a roll bar for track racing regulations.
In GT1, GT2, and GT5, RM didn't really change the stock car's stats. Not for GT5, but in GT1 and GT2 the RM keeps the car's current state and iirc equipped parts.
I'm not bothered at all. :lol: I just find it weird that the widebody option has been compared to RM in previous games, and labeled as the "new RM". Then I find it weird that suddenly, people start believing that widebodies will be available to almost every road car, and that every road car can get a similar treatment to what RMs did in GT5, turning road cars into full race cars.
Different era, and dunno if you've played PS1 GTs, but in GT1 and GT2, RM is available to almost every car in the game. Also Kaz refered to roll cages, but didn't say that only roll cages (though it can happen...) are the other racing option that can be added.
I expect widebody and other car body changes/additions to be exactly like GT6, available on about 50 cars absolute tops. Modelling those differences takes a fair bit of work.
There were no RM in GT6, the race cars are sold separately. For Aero Kits though, GT5 also has that (both with RM too), and for that, iirc it's available to almost all Premium cars. In GT7 it's probably the Custom Parts menu though.

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This is the main event I played in GT4. There is qualifying in this event.
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The Opera Performance S2000 was the car to beat. I didn’t care much as I just used the normal S2000 and FPV GT.
Nismo S-Tune was also a good car to use.

GT4 was the game that had nothing but tuned cars. It was nearly a 350Z fest with all the different tuned version Z cars.
Mugen and Spoon S2000s.
Amuse S2000s: The orange Touge Monster R1 Titan S2000. A Street tuned version and the GT1.
 
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Don't recall any tuning championship in GT4, iirc the last time the opponent had tuned cars is GT3's Like the Wind, in the Vipers or such. But iirc there are no tuned cars again in GT4 or later, the opponent cars are all stuck.
In GT4 the opponent cars aren't always stock, go into to Opel Speedster/VX220 race and try to win that with a stock Speedster/VX220. I can't say I've looked at the actual data for GT4 personally, but there's definitely tuned cars in a number of the events.

They certainly don't run stock in most of the events in Gran Turismo 5, each of the cars the AI use have preset tunes and settings for each event. I have dabbled with the database in GT5, creating custom events with custom AI grids etc.
 
Different era, and dunno if you've played PS1 GTs, but in GT1 and GT2, RM is available to almost every car in the game. Also Kaz refered to roll cages, but didn't say that only roll cages (though it can happen...) are the other racing option that can be added.
Didn't play GT1. But back then the process of RMing a car was way easier than today's. Before they would just change the exterior with low quality graphics (good for the time, but of course no way near the detail we see today) and some "hidden" stats. Right now the amount of effort it would take to model a single vent or side squirt, would probably be the same as modeling an entire RM for GT1 and 2. Now imagine the amount of work it takes to model the entire RM car (or equivalent) for a modern game, including not only a fully detailed exterior, but also the interior. This means that the time it takes PD to model a single RM today, is probably the equivalent to 20+ GT2 era RMs. So I believe we won't have something equivalent to an RM in GT7 to that many cars.

There were no RM in GT6, the race cars are sold separately. For Aero Kits though, GT5 also has that (both with RM too), and for that, iirc it's available to almost all Premium cars. In GT7 it's probably the Custom Parts menu though.
RMs were fairly limited in number. Aero kits/body parts were available to most premium road cars. Mind you, that those premium cars weren't that many, and some of them (like the Enzo and many others) didn't have access to any mods apart from the rear wing. Some cars had some subtle parts, others way more noticeable. I don't doubt we will get something similar in GT7, with a decent amount of aero kits, but I don't see them as an equivalent to the RMs.
 
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