In 1973, AMC stylists put together this ultra-rare one of a kind prototype for the next generation Javelin. But, money woes at AMC, along with tightening fuel supplies, rising insurance premiums on fuel hungry performance cars, all started to take their toll on the market for fast cars with big engines, so for 1974, the final year of the AMC Javelin, the car was basically the same as the 1971, 1972 and 1973 models. High performance fans which gave AMC a second look as a car brand were no doubt disappointed to see the high performance AMX and Javelin cars cease to be for the 1975 model year. For a while, some car racers attempted to use the sporty 2 door Matador bodies to race. In 1977, a sporty version of the Hornet had special body trim and was branded as the AMX. In 1978, the car was restyled with a fresher grille work, and in 1979, the smaller new AMC Spirit body was used, with a return of the 304V8. 1980 was the last year of the AMX nameplate, but only the 258 six was offered. However, paint company PPG, later built a custom 1983 AMX that had a 450 horsepower version of the AMC six, which was an amazing achievement.