The 1991-2001 NSX have a Cd value of .32.
The 2002+ models have a Cd value of 0.30
If I remember correctly, the frontal area of a (1991-2001) is just 1.78 m2.
That is a LOT less than most other cars.
Besides that, I think a lot of people are missing some points.
The old model NSX produces almost NO lift, even at high speeds.
The NSX-R actually produces downforce at high speeds if I remember reading it correctly.
You cannot get downforce without loosing some aerodynamic efficiency AFAIK. Putting wing on a car to creat downforce will automatically increase wind resistance and lead to a higher Cd-number.
A Prius is just developed to have a low Cd-value because it is designed to be fuel efficient. You are not going to do any 120-140 mph sprints in a Prius.
I do wonder though what the Cd of a slighly modded (lowered) NSX might be with wheels that fit more flush with the body.
