Gran Turismo 7 Undocumented Changes Thread (Update 1.55)

[RACECAR]

Based on the original thread format by @Johnnypenso


For every update released, there is the potential for changes not listed in the initial patch notes. Please report any undocumented changes you find in the current update and I'll update the OP as much as possible to reflect those changes found.


1. It is encouraged that you make an effort in verifying these changes as much as possible, either through videos or images.
2. If you need help from the community to verify something, don't be afraid to ask.
3. It is strongly advised that you be as specific and detailed as possible with the information including a brief description of the bug or improvement before it was fixed/changed (if applicable) and how. If English is not your first language that's ok, just do it to the best of your ability.


THIS IS NOT A DISCUSSION THREAD ABOUT THE OFFICIAL CHANGES Only any changes not listed on the official site are discussed here
THIS IS NOT A DISCUSSION THREAD ABOUT THE PROS AND CONS OF THE UPDATE or anything else other than undocumented changes in the update. Keep those strictly to the appropriate threads:
https://www.gtplanet.net/forum/thre...ew-cars-and-more.430439/page-26#post-14401630

Update (1.55)​

Documented Changes​

1. Cars
　- The following four cars have been added:
　　・Gran Turismo F3500-A
　　・Honda Civic Si Extra (EF) '87 (Sold at the 'Used Cars' dealership)
　　・Hyundai IONIQ 5 N '24
　　・Toyota C-HR S '18

2. Gran Turismo Sophy
　- Gran Turismo Sophy is now implemented for the following track layouts:
　　・Autódromo de Interlagos
　　・Mount Panorama Circuit

Please note that the Gran Turismo Sophy mode is only available on the PS5 version of Gran Turismo 7.

3. World Circuits
　- The following new events join the World Circuits lineup:
　　・Kyoto Driving Park - Miyabi
　　　- Sunday Cup
　　・Sardegna - Road Track - C
　　　- Japanese FF Challenge 450
　　・Autódromo de Interlagos
　　　- World Touring Car 600

4. Café
　- The following Extra Menu has been added:
　　・ Extra Menu No.43: Collection: Group C (Collector Level 48)

5. Brand Central
　- New Museum entries have been added for the following brands:
　　・AMG
　　・MINI

6. GT Auto
　- Car Maintenance & Service
　　Engine Swaps are now available for the following cars (unlocked at Collector Level 50):
　　・Alpine A110 1600S '72
　　・Citroën DS 21 Pallas '70
　　・Honda Civic Si Extra (EF) '87
　　・Mitsubishi Lancer Evolution VIII MR GSR '04
　　・Porsche 356 A/1500 GS GT Carrera Speedster '56
　　・ Porsche 911 GT3 RS (992) '22
　　・Renault R5 Turbo '80
　　・ Renault R8 Gordini '66
　　・Subaru Impreza Sedan WRX STi '04

7. Scapes
　- 'Chromatic Drive' has been added as a featured Curation in Scapes.

Other Improvements and Adjustments​

1. Physics Simulation Model
　- The behavioural model for the suspensions has been adjusted:
　　・Reduced sudden changes in behaviour when driving over bumps or uneven surfaces.

　- The tyre physics simulation model has been adjusted:
　　・The dependency on load while cornering has been adjusted;
　　・The grip loss on racing lines on wet surfaces has been reduced;
　　・The degree to which grip loss occurs from dirty tyres when driving off the track has been reduced, and the speed at which grip is restored upon returning to the track has been increased.

　- The performance of the following cars has been adjusted:
　　・Toyota Aqua S '11
　　・Toyota Prius G '09

　- The handling of certain cars has been updated:
　　・The default aerodynamic settings for Gr.1 cars and certain race cars have been adjusted;
　　・The default suspension and differential settings for certain road cars have been adjusted.

　- Performance Points (PP) for certain cars have been updated;

　- The wireless controller steering algorithm has been updated:
　　・The steering algorithm when using the analogue sticks or the directional pad has been improved, resulting in better handling.

　- Controller behaviour for steering wheels have been updated:
　　・The steering geometry calculation have improved, resulting in better force feedback feeling.
　　・The torque settings for formula cars have been adjusted.

　- The effects of the following driving assists have been updated:
　　・The Traction Control (TCS) assist intervention has been optimised;
　　・Corner braking control for ABS (anti-lock brakes) has been optimised.

2. World Circuits
　- Adjusted the difficulty level of the following race events:
　　・ Red Bull Ring
　　　- Championship World Touring Car 600
　　・ Suzuka Circuit
　　　- Championship World Touring Car 600
　　・ Dragon Trail Seaside
　　　- Championship World Touring Car 600

　- Adjusted the target times for all Circuit Experience events, and updated all demonstration replays. Additionally, all rankings boards have been reset.

3. Licence Centre
　- Adjusted the target times for all Licence events, and updated all demonstration replays. Additionally, all rankings boards have been reset.

4. Missions
　- All rankings boards have been reset.

5. Sport
　- The maximum value of the Driver Rating (DR) has been increased.

6. Cars
　- Changed the lineup of tyre stickers for the following cars:
　　・Dallara SF23 Super Formula / Honda '23
　　・Dallara SF23 Super Formula / Toyota '23

7. Localisation
　- Fixed various text localisation issues.

Undocumented Changes​

• The digital display on the Porsche 992 Turbo S has been fixed, now correctly displaying the speed on the dash.
• The RUF RGT's final drive can now be modified
• The Ford Mustang Boss 429's custom manual and racing transmissions have fixed and now correctly work differently
• Shifting behavior on the Ferrari F430 and 430 Scuderia have been fixed
• An error on the default livery on the Ford GT LM Test Car has been fixed

 

[RACECAR]

Alright folks, first update of 2025. You know the drill buy now: Post changes you that have not at all been mentioned in the OP or the official patch notes (Please read carefully to ensure there is no confusion). Anything involving bugs, physics, engine swaps and other stuff go in the following threads show here as well as in OP:






And with Mariah Carey back on Ice, you may post.

 

[OFautomotive]

They added the km/h digital display on the 992 Turbo S that missed when they added the car.
BUT, still no rear wheel steering feature and the brake light is still missing on the main light bar

 

[hyperspeed980]

Three changes I've noticed:

• The 992 Turbo now correctly displays the speed on the dash, as mentioned above by @OFautomotive
• The RUF RGT's final drive can now be modified, which it couldn't before
• The Mustang Boss 429's custom Manual and Racing transmissions are now correctly differentiated - previously, both acted as the Manual transmission

Not bad as far as bug fixes go!

 

[OFautomotive]

They also reworked the shifting behaviour of the 430 Dcuderiz

 

[PettyWingman]

They also reworked the shifting behaviour of the 430 Dcuderiz

And on the base F430, too!
Also...

Noticed too late, but they had fixed the missing stripes on the Ford GT LM Spec II Test Car. (Not in 1.52 but in 1.49)
Before:

After:

...But now, it has excess side stripes only on the left side.

They have fixed it.
Now it looks perfect?

 

[Reeneman]

Any visual changes with the ps5 pro version?
Did they fix the stuttering when you switch to the cockpit view?

 

[SPOOLMAN]

A lot of the exhaust sounds have improved tremendously

Unfortunately the R34 GTR RB26 still sounds like ass. Why can't polyphony ever get this right?

 

[OFautomotive]

A lot of the exhaust sounds have improved tremendously

Unfortunately the R34 GTR RB26 still sounds like ass. Why can't polyphony ever get this right?

Which car ?

 

[GundamEmpire]

What does "adjusted difficulty level" even mean? Are the races easier or harder or does the AI just drive better?

 

[Meythia]

What does "adjusted difficulty level" even mean? Are the races easier or harder or does the AI just drive better?

As cars almost always increase in their PP value with game changes, they are becoming slower at the same PP value they had before.
In that way it would make sense to readjust difficulty to make it easier, as the AI cars do not suffer from PP changes.
Though you propably wont notice a difference when comparing an old version race with a new version race as the AI is not very consistent at all and you may end up with a fast old compared to a slow new total time - unless the change is reducing the AI perfomance by quite a lot.

 

[Mike Hamilton]

A lot of the exhaust sounds have improved tremendously

Unfortunately the R34 GTR RB26 still sounds like ass. Why can't polyphony ever get this right?

A lot? Tremendously? Which ones? I cannot notice any change. Still no DCT upshift bangs for the A45

 

[sumbrownkid]

I think the 992 GT3 RS doesn't vibrate the controller like crazy anymore at low speed, I think they resolved the issue of the car's rear suspension unnecessarily moving for the most part.

 

[WolfpackS2k]

They added the km/h digital display on the 992 Turbo S that missed when they added the car.
BUT, still no rear wheel steering feature and the brake light is still missing on the main light bar

Is the boost gauge still wrong? (not the in dash one, the overlay)

 

[chengman]

GR Yaris still has the equivalent boost pressure of a naturally aspirated car unfortunately.

 

[Andy Lapi]

On DD+

• more FFB
• joysticks use is easier,, less + when you only want to go right and left..
• Also good vibrations when you are in sharp turn it helps to feel the car limit

 

[SnakeEyes427]

What does "adjusted difficulty level" even mean? Are the races easier or harder or does the AI just drive better?

I fear PD may have "dumbed down the game to more closely match MFGT. In an effort to keep the new players coming to 7.

 

[Reeneman]

Stuttering/FPS drops is still there on ps5 pro when you switch to the cockpit view is still there.

 

[Panoz]

Happen to notice PD has added the manufacturer logos to the livery pages on the game website.

 

[fifaburgio]

You can change the exhaust

 

[FluxWildly]

They also reworked the shifting behaviour of the 430 Dcuderiz

Are you talking about the issue where you could not downshift sometimes if there was no throttle application.

 

[hyperspeed980]

Are you talking about the issue where you could not downshift sometimes if there was no throttle application.

That was a side effect of the transmission type used, which has now been changed.

Both 430s are now using the automated manual found in cars like the Aventador, R8 and Maserati GT, as opposed to the "seamless shift" gearbox.

 

[CTznOfTime]

My tuned LeMans Money Maker Grinding Machine Corvette C8 was at 699.98PP prior to the update.

It is now 701.51.

Need to tweak it so that I can continue grinding...

small change with the ballast and two point down with ECU, did the trick:
700PP

Or I can just keep the same power output, but add more ballast to lower the PP to 699.96...
Adding 38lbs to the car...

 

[RACECAR]

My tuned LeMans Money Maker Grinding Machine Corvette C8 was at 699.98PP prior to the update.

It is now 701.51.

Need to tweak it so that I can continue grinding...

Technically, PP changes were officially announced for certain cars (Whichever those are) so...

Does make me think I need to see if my NSX GT500 I use for grinding also needs to be tweaked.

 

[outofspace]

Anyone else noticed a difference when you enable the anti lag? I opened it on weak and as soon as i get on track i could feel the difference! The rpms don't drop, it's now instant power without delay! Can anyone else verify?

 

[Eggstor]

Technically, PP changes were officially announced for certain cars (Whichever those are) so...

Does make me think I need to see if my NSX GT500 I use for grinding also needs to be tweaked.

I noted exactly one car where the PP wasn't changed at least slightly.

Related to the change in tire physics, the published tire wear rates have changed for those races that have tire wear. I can't say for certain whether the effective wear rates (the number of laps one can run) have changed.

 

[Tommy_D]

Looks like there were several new Volvo paint colors, one new BMW color, one new Chevrolet color and I think there was one more but I forgot.

Also, I think it’s pretty cool that you can get different front splitters, rear wings and bodywork for the F3500-A. You can actually customize it to have lots of different looks.

 

[PettyWingman]

I want to know which in-game type of gearbox the F430 and 430 Scuderia now got.
To those who have the H-shifter and clutch pedal controllers, can you disengage the clutch of those cars using the clutch pedal controller?
If yes, they have the manual one, and if no, they have the semi-automatic one (which is correct).

(And I'll be happy if you would do it for the Gallardo, though I believe that car haven't got any change since its addition.)

 

[RACECAR]

Looks like there were several new Volvo paint colors, one new BMW color, one new Chevrolet color and I think there was one more but I forgot.

Can you say what any of them are? Want to make they are new and not just previously unnoticed.

 

[CTznOfTime]

Technically, PP changes were officially announced for certain cars (Whichever those are) so...

Does make me think I need to see if my NSX GT500 I use for grinding also needs to be tweaked.

I have been manually grinding the C8 Corvette at LeMans 700 for 7000 miles this past year now,

And After grinding twice with this new update
I can Positively confirm the following changes:

• driving physics is much more stable, easier to drive, less awkward twitch, the computer is able to drive more consistently and in a better manner.
• tire wear rate decreased = tires last slightly longer = positive change
• fuel consumption rate decreased= fuel last slightly longer

All these changes means = I can drive longer and not have to pit as often.

I usually put the fuel rate as lean as possible (level 6) if I want to hope lasting 4 full laps without piting.
Now with this 1.55 update, i can easily go a bit richer up to level 4, and still last easily 4 full laps without even short shifting.

I am loving this physics change .

I noted exactly one car where the PP wasn't changed at least slightly.

Related to the change in tire physics, the published tire wear rates have changed for those races that have tire wear. I can't say for certain whether the effective wear rates (the number of laps one can run) have changed.

For one car I can see a positive change, I will try to test the other cars that I have used for grinding...