2 things, bikes a nuisance on the ring?? Maybe some tourists like me that take thei race tracktor called buell xb12 there in february but believe me, a lot of cars there are pretty slow to not to talk of buses that take a spin. But i once saw a guy ( we were 4 people in a friends e46 m3 so not really on time attack) he was ridin a Ktm 990 supermoto and believe me he was very fast in cornering the porsche 911 chasing him lost ground.
I think that if we talk in terms of realism, a lot of coding is necessry on damage. If we take the example of a heqvy Veyron goin 200 mph crushing into a 2 cv, a lot of million pieces would be flyin around since the body consist of a polyamid or something. Means there wouldnt be much left of that citroen.
The rally really is bummed somehow in gt5 i never understood why they didnt just go for the rallycross challenges? That would have been awesome. Ok we wouldnt have the actual modern rally cars, but honestly (i may be to old) who cares about these c3..... If we get the awesome monsters a la escort cosworth and lancia deltas??? And yes where the Hell is the Audi quattro rally car????? That car is historic because it was the first 4 wd and turbo rally car.