[rotorwrench]

If a person uses a tarp, it has to be the real thing. Not one of those cheep plastic things they call a tarp. Real cotton duck material should be used. There are grommet eyelets on them for a reason. The tarp has to fit all the way over front to rear and side to side. good quality bungees would be needed to pull the tarp tight all the way around. Slip stream air should not be able to get underneath the tarp when driving down the road or it will flap. The flapping will damage what ever surface it is flapping on. Covers can be put over the car before the tarp but they must be well secured and soft material that will not mar the finish. Bubble plastic will even mar the surface so that should never be considered. sharp edges should have a protective piece of cardboard taped securely over so it won't rip the tarp.

Over the road truck freight that is too big or heavy for a van body trailer gets tarped up for a long haul every day but they don't scrimp on the way they do it or they will get called out for it. If you can't meet these specs then the car should not be tarped at all or it should be in an enclosed trailer.