AMC never had anywhere near the R&D budget of GM, Ford, or Chrysler, yet it built cars like the 340-horsepower Rebel Machine and the two-seat AMX that could run mid-14-second quarter miles from the factory floor. A new video counts down the 15 quickest muscle cars the independent automaker ever produced, from the ultra-rare 1,512-unit SC/Rambler to the 401-cubic-inch second-generation Javelin AMX. It’s proof the muscle car wars had a scrappy fourth competitor most fans forget about.