The AMC AMX, built from 1968 through 1970, was one of the only two-seat sports cars made in the U.S. when introduced.

Under the AMX's hood lived an array of V8 engines ranging from 290 to 390 cubic inches. The base motor for 1968-1969 was a 290 c.i. V8 making 225 horsepower, but enthusiasts could order the 390 c ...