So speaking of GM products, and open body aerodynamics, I came across this video the other day. This is a C5 Corvette with a twin turbo 427 that will run 185 mph in a standing 1/4 mile, but without a body. I saw it run and just watched it fall flat at the end of the track and this video explained why. At just 170 mph the wind tunnel tech said it was over 500 hp lost on just the terrible .75 something Cd. Dude needs to put a body on that thing!