7. Chevrolet Corvette L88
Chevrolet produced the second-generation Corvette (C2) from 1963 to 1967. It was one of the most beautiful and aggressive-looking cars of the muscle car era. It was also a popular and successful racing car in the hands of many private racing teams. Corvettes equipped with the L-88 engine were in a class by themselves since the aluminum head produced close to 600 HP (via The Manual).
Also, the L-88 had a mandatory heavy-duty suspension, brakes, and handling package. Chevy developed this option for racers. But it was expensive, almost doubling the price of the base ’67 Corvette. That’s why it is one of the rarest, with only 20 in coupe and convertible form.