33. Chevrolet Impala SS 409
The legendary SS (Super Sport) package has its place in muscle car history as it brought performance to the general public. This was one of the first high-performance automobiles that were relatively affordable. Just through mild modifications to the engine, it could produce up to 409 HP which was enough to propel the Impala from 0 to 60 mph in six seconds (via Motor Trend).
At the time, it was Corvette territory. Chevrolet presented the SS package, which featured bucket seats and sports trim. It came with the 348 V8 engine with 350 HP. However, the most attractive option was the 409 V8 with up to 409 HP if drivers opted for a dual-quad intake system.