Here's an example of what I'm talking about "gutt feeling". First and Second generation Mazda Miata. Wheel base, size, weight all comparable to a Cobra. MUCH smaller frontal area, looks like it would have a pretty good CD. In fact Miata's are .38 which is pretty high, much higher than many modern cars. Therefore, Cobra's having even more frontal air and a much larger grill opening couldn't be any better. A .41 estimate is likely cutting them some slack!
