Back in the 1990s a computer spat out the message that the wedge shape was the ideal for car design, for aerodynamics. I said then and I say it now They got it wrong! A computers response can only return a result in relation to the information fed into it So I'm not saying the computer made a mistake. My belief has always been that what they should be looking at is in fact a reverse teardrop with a flattened bottom because of restricted airflow dew to low ground clearance. You just have to look to the people who design items that are absolutely critically reliant on aerodynamics, look at the water line of a sailing boat to a racing yacht you see a reverse teardrop, or the latest wind tunnel results on today's cars, greater slopes to front and curved windscreens, Bobbed round tails and round edges admittedly with a bias for down force. Classic examples being, the likes of many of the more exotic makes and some lower end makes to see this trend. Sharp edges and strait lines maybe become relevant at supersonic speeds but that is beyond my comprehension. Who got it wrong?