Judging by the replies on this thread it's pretty obvious not many have these seats. Unless your car is a PURE RACE car, I see absolutely no need for these seats.
Many years ago I thought it would be cool to have these seats and bought one for my Eclipse which was also highly modded. That car has no blind spots but with that seat, I could not see anything when changing lanes!
In a car like the NSX with the low roof and seating position, I would not consider this seat in a million years - again unless you have a pure track car.
rk