So, I was reading Hucho on my lunch hour and came across a very nice little chart that plotted rear vehicle taper angle (off horizontal) versus Cd. Of course my own car immediately pops into mind and I must measure to get a good idea of how bad things are. Well, it turns out things AREN'T very bad at all! I went and grabbed a side view of a Paseo and popped it into my CAD software. Looks like my rear windshield angle is roughly 16.7°. According to the chart the optimum is very near 15°. Hurray for the Paseo for being pretty darn close.
Of course, this brings up the idea of rear spoiler removal... we'll get to that later.
