I understand that, but obviously there is a limit as far as what sort of speeds they can hit you at. Secondly, the guy hitting the other car will slow down, and not bounce off and have their car steered in the proper direction automatically.
Well, in HD it wasn't really addressed, but that could be because you didn't face other vehicles. But to see it in action in HD, just go up to a railing and then stop with your front bumper right against the rail. Now steer right and left without accelerating.
BTW, for some reason I never considered the following...
Will this game be free like HD? Will it be a discount priced game?