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 and rear-wheel drive, and it could be with manual transmission. AMC designed it as a performance version of the Spirit compact car (via Motor Trend).
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.