5. 1974 AMC Javelin AMX
The last year for the legendary Javelin AMX was 1974. But despite the effort from AMC engineers, the power output was down by 20 HP to 235 HP from its optional 401 V8 engine. Even with the performance goodies, sport suspension, and manual transmission, the 0 to 60 mph times were just over eight seconds.
That just isn’t fast, especially for a muscle car. The Javelin did enjoy some success on the Trans-Am circuits, but it didn’t win many street races.