14. 1968 Road Runner
We’ve seen a few Plymouths make this list, and even a few Road Runners. However this one is a bit different. For starters, it was only produced as a two door model. That’s right, you couldn’t fit four people in this baby if you wanted to. It was a standard two door coupe based on the popular Belvedere. Yet, let’s talk about the engine since that’s what these fastest American muscle car list cars are all about. The standard V-8 Road Runner engine produced 335 hp from a 383 cubic and 6.3 liter monster. It was capable of producing 425 foot-pounds of torque, which is pretty impressive for a two door coupe. Here is the kicker though. If you wanted air-conditioning with your 68 Road Runner, you were going to be outfitted with a 330 hp version. The reason was simple. The 335 didn’t hold enough vacuum to accommodate any sort of air system. You did get to choose between a standard four speed manual transmission with the option of having a three speed torque flight automatic though. However, if you wanted speed and control, always go with the manual. That’s just what car enthusiasts do. No wonder this one continues to hang out on every muscle car list in existence!
ET/MPH 13.54@105.1 – Engine 426 Hemi – Horse Power 425 – Gear 3.55 – Transmission Automatic – Source CD1/69