[aerohead]

I believe that the Corvette pictured was around Cd 0.50
The Ferrari would be lower but not great.
Enzo really didn't give a ---t about drag coefficients.The cars were light,very powerfull,relatively small frontal area.
Stability would overshadow low drag,as all these cars could be legally driven at their limit in some places.
In the late 70s Mazda came out with their GLC,and in their marketing,mentioned that it had a lower Cd than a Corvette.This may have precipitated the move towards better streamlining.on the Chevy.
GM used to have designs 12-years out into the future so it's hard to tell.