Wheelwell rounding.
It would have been nice if they would have rounded the wheel wells like on the Gen1 Insight. According to this picture, it would have improved the Cd by about 0.007 (probably a little less), or take it from 0.189 to around 0.182. Not insignificant when there are so few improvements left to be had.
I agree with Old Tele Man, that sculpting should go. The hubcaps should have been made as smooth as possible also.
I guess these may have been things they traded, and the improvements were so small that they decided to keep the styling. I guess we may never know.
__________________
|