I was just watching a video on Youtube where these guys got a hold of a golf ball dimpled skate board that was supposed to flip faster so they could do better tricks, they were not sure if the golf ball dimple design really helped. I remember thinking back in the day about cars with this design but never really knew what the science of it was so I looked it up on Youtube.
This is a great little video explaining when it does, and when it doesn't help to have this design.... Given what he says, do we still think it's not worth adding to our cars? Im sure some cars would benefit more that others?