You're probably thinking of the
Ferrari Superamerica, which weighs quite a bit, but makes over 500 horsepower. Do you really think the Enzo would be compared to the McLaren F1 if it had only 400 horsepower? IT'S ****ING CARBON-FIBER. For Christ's sake, the engine is a stressed member of the ****in' chassis, and you're going to compare it to a Corvette with a ****ING LEAF SPRING SUSPENSION?
By the way, I thought the Corvette still employed a few fiberglass parts.