11. AMC Spirit AMX
Introduced in 1978, AMC Spirit AMX was an actual compact muscle car due to the fact it had an optional 304 V8 engine, rear-wheel drive, and manual transmission. AMC designed it as a performance version of the Spirit compact car (via Silodrome).
On sale for just two years, the Spirit AMX had some success due to the fact it was inexpensive and cool-looking. The AMX package included a body kit, special livery, and wide wheels. Unfortunately, AMC decided to kill the model, and the Spirit AMX did not return for the 1980 model year.