the Porsche 911 GT1 is great, love its physic but I notice one mysterious bug that happen on a few of my addon cars (it might be my SHIFT 2 problem, I'm not sure). Is a bit hard to explain, so I made a video of it:
part of the driver seems to be outside the car, this bug only appear if you pause your race and access photo mode. It looks fine in replay or you pause your replay and access photo mode.
Overall the car is amazing, just one mysterious minor bug on my side. I'm looking forward to see the Ferrari 512 mod.