[MTrenk]

For the hood with the directional vents, you could pop some air temperature (or pressure) sensors across the back of the hook in a lane (maybe even two or three rows for a nice plot) and that could net you some useful data. They'd have to be nice ones though!

freebeard that car is quite gorgeous. The back transition straight into the ground doesn't look like it would do much good, but I do enjoy the attempt to make the entire front end of the car a massive airfoil. That is a big part of my designs.