[Christ]

Originally Posted by MetroMPG

Note as well that the BMW drafted the Prius all the way around the track!

Wouldn't this help them both, though? It's not like drafting was slowing the Prius down, right?

I actually think it works the other way around, that drafting off the back of a vehicle helps that vehicle moreso than it does the person drafting, because it (should) reduce the size of the wake area substantially (since the drafter's nose cone (thus, stagnation point) will be inside the wake during a proper draft technique).