5. Chevrolet SS

The Chevrolet SS was the epitome of a sleeper car—understated on the outside, but packing a Corvette-derived V8 under the hood.
Built on the same Australian Holden platform as the Pontiac G8, the SS delivered genuine sports sedan performance with rear-wheel drive and available manual transmission.
Despite its dynamic driving experience, the SS’s subtle looks and lack of marketing meant many buyers simply overlooked it.
Among enthusiasts, it’s now celebrated as an American rival to BMW’s M5 and other luxury sport sedans.
Read enthusiast reviews of the Chevrolet SS.