Yeah, me neither. As others have noted, the tires are free spinning. So it is hard to see how they could result in any drag.
Looking at the Mythbusters video I don't think their moving tarp does a good job of producing no tire rotation. They'd just about have to drag the tarp in the opposite direction to get that. It still should have no effect.
Looking at the Mythbusters video I don't think their moving tarp does a good job of producing no tire rotation. They'd just about have to drag the tarp in the opposite direction to get that. It still should have no effect.