Like Poodles said our cars came from a different time, they came from the Ground Effects era that was later abandoned due to what happens when a car using ground effects gets sideways. Way back during that era if you were into racing you would have seen that, once they realized the cost of getting sideways instantly was death for many famous drives they changed to what they use to day which if you compare the cars is very different. Both Racing Aerodynamic eras had wind tunnel testing but remember computers have never dreamed up creative ways to keep a car stuck to the ground and slipping thru the air with as little a CD as possible, WE dream these ideas up today just like yesterday and use computers to either prove them or disprove them. On the supra wings if you know anything about the aerodynamic shape of a wing, not talking spoilers here, that the Supra wing is nothing similar to aerodynamic, I believe it was nothing more than a trim piece. It has the same curve at the leading edge as it does on the trailing edge and in between is the same thickness from what I’ve seen. If you look at the wing I currently use and I aint saying mine works wonders, but it does have an aerodynamic shape. All I’m looking for is a cheap decent look that actually does something and some downforce when I hit it at high speed. As I mentioned in post once if anyone tried to convince you things hanging off the back of your car doesn’t have any effect you invite them for a ride in the passenger seat roll the window down and do 80 and have them stick their arm out the window, then they'll see the light, let alone at 100, 110, 120, 130, 140, 150, 160 mph, cause you know we all do 80 on a regular basis. On the MK4 CD I swear I read an article years ago it had at the time the lowest CD ever.
). You'll need a technical understanding of fluid dynamics to understand everything (that's why i didn't understand everything 
