Lets talk physics!

  • Thread starter JJ72
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Really want to share my view on FM4's physics after today's playthrough, since there's no dedicated thread for it!

Played over 12 hours today and in all sorts of cars, super mini, muscle cars, super cars, tuned muscle cars, touring cars etc etc, I think some aspect of the improvement are really really apparent.

The single biggest breakthrough for me is the feel of the tire at the limit of grip, the linear and consistent behavior in-between transactions feels absolutely natural and fluid, what's amazing is even when the tire get into extreme slip angles you can still feel it working, instead of losing all connection as in FM3.

The overall grip level has been reduced by at least 15% or so, Tried M3 on Mugello combo in both games and FM4's time is at least 8 second up, the cornering speed are much more reasonable and braking distance increased as well. And the feeling of brake locking up is one of the best I have tried hardcore sims included, the point of locking up is very concise and you can recover with a slight decrease in brake pleasure, it is a joy trying to stop a RUF car on Road America while keeping the rear in check, it's so alive.

The unhindered weight transfer model makes weight manipulation twice as effective, try a Fiat 500 or Cooper S and understand the real meaning of lift-off oversteer, not only does weight shift happens earlier it also carries the momentum for longer, hence even a non drifter like me can hold decent entry slides whenever the car has some mass.

The distinction of different cars is more apparent as a result too, cars with short wheelbase feels like it and cars that are similar in layout have minute differences, what's great is everything seem to happen for a right reason, and everything makes sense.

The main downfall so far is slick tires being a bit too forgiving, I only have very limited time in some R1 cars but they seem pretty easy to recover even when you make mistakes. And of course I don't have time to test out the tire degradation and heat properties etc.

But up to now, objectively, I don't see anything GT5 does that FM4 isn't superior on at least on par, in some places FM4 can feel numb but that's because of the fidelity of the track surface not being good enough, if the FM4 physics model runs on a Iracing track it will be one hell of an experience.
 
Thanks for that. I agree with all of your observations, that I have personally seen. I only got a few hours in and spent more time tuning, painting, and testing out f-c cars.
 
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Having just spent 2 hours on the Zonda Challenge in the FM4 Demo, and then GT5 Spec 2 with the Zonda R around Laguna Seca,

I agree with JJ, the layers of physics in FM4 are just so apparant, the FFB, as you say, is so involving, I can really feel the tyres, feel the car pushing, and know exactly what the car is doing.. I found GT5 just a little too numb (Fanatec PWTS + CSP's)..

I can't wait to get FM4 now and sample a range of cars, if the Zonda is anything to go by, it should be very good indeed.

And I totally agree with the 'forgiving' aspect, it is, without doubt, but the rest of the physics seem to make up for that, and it makes it feel really engaging..
 
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Interesting read 👍

If Forza follows this path onto the next generation of consoles, I might invest in a next-gen XBOX and Forza 5.
 
I agree with the original poster. The other thing that I think has improved is the AI if you turn up the difficulty it gets pretty interesting. The physics are so amazing and I just did light tuning. Even the stock tire model on some cars is great and the level of feedback you get from the car through the wheel seems way more realistic than gt5. I also like the sense of speed as well as the subtle side effects like the backfires and the sound is the best I have heard in any racer. Thanks to the work around for the wheel to get it to steer beyond the 270 the game is perfect imo. I set my wheel to 450 for sensitivity and it was dialed in just right. I wen't to the ring because of the complaints but to be honest i found that it's not that the ring is wider it's that there is more grass or runoff area most of the tracks actually seem narrower compared to Forza 3. The other thing i was impressed with was the different times of day that you can play on. Now granted there isn't dynamic weather it is cool to have the option to pick different times of day for some of the tracks.
 
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