Hyas!
Was running an M3 yesterday along to an enemy V base at 45 Mph .. and thought wow we're lucky that this beasts don't kick up any dust ...
but actually i think they should !
The dust is already in there and all the ground vehicles should have a dust trail while they move faster than a certain speed ..
Would make it necessary to stop or drive slowly if you want to go stealth mode

just an idea...