1968 AMX 390 for sale in Texas. AMX meant "American Motors Experimental" This American Automobile was the first steel bodied two seater since the 57 T-Bird started as a prototype in 1966. The Base V-8 was a 290 cubic inch 225 horsepower. Engine options included a 343 cubic inch 280 horsepower and a 390 cubic inch 315 horsepower V-8. In the 1/4 this car could do 95mph at 14.8 seconds. This 1968 AMX 390 had a 97 inch wheelbase, reclining bucket seats and woodgrain interior trim. 6,725 cars were built and the average price was $3,245.00. Most famous were the 50 Special "Craig Breedlove" AMX. This Muscle Car is painted Bittersweet Orange.