[IsaacCarlson]

I was pondering wheel covers and their benefits compared to wheel skirts. I realized that the top of a wheel is going twice as fast as the car in relation to the air. Well if drag is the square of speed increase, then there must be 4 times more drag on the top of the wheel as there is in the middle, and no drag on the bottom. Has anyone used covers and skirts together? Just thinking out loud....