12. Plymouth Duster 340
As an economy brand, Plymouth was active and successful at the lower end of the market starting in the early ‘60s with the Valiant. But by the late ‘60s and early ‘70s, the compact market had grown, so Plymouth introduced the Duster 340. This model was a junior muscle car. It had a smaller 340 HP engine they rated at 275 HP.
Plymouth never anticipated the success the Duster 340 achieved, so they doubled the production in just a few months. The 275 HP engine moved the light body to respectable 0 to 60 mph times of just over six seconds. The car may have been half the size of some of the heavy hitters of the era, but it was almost as fast. Also, it cost just under $3,000, which was extremely affordable. After the original muscle car era ended in 1974, Plymouth continued to offer the Duster 340.