Umm, I don't think it's realistic how slow the cars are on the field. Sure on some rough offroad terrain they can go pretty slow but not on a long and smooth field?
Also, for me it's almost impossible to drive on the road for more than 30 seconds .. the next corner I always come off the road and get slowed down to infantry speed.
I'd simply like to request a normal steering like in every other game where you can drive cars (or most of them). In ArmA 2 the wheels move so slow back to the initial position that you can barely steer quickly at all. That way the steering would be much better and you wouldn't have such a big struggle to stay on the road at medium speed and those who want infantry speeds on smooth fields can have them ..