The Ridgeline, and the Cadillac EXT/Chevy Avalanche remind me of the 1969 El Camino. Just not as sweet.
I don't pretend to understand this, but it suggests to me that sail panels are beneficial, as kach22i says.
https://ecomodder.com/forum/showthre...tml#post581181
Consider the humble superellipse:
It transitions smoothly from a perfect square to a perfect circle; neither of which you want. Still...