23. Pontiac GT-37
One of the rarest and forgotten muscle cars is Pontiac’s GT-37 which was not a model of its own but an option package on the 1970 and 1971 Tempest. Behind this strange name was a regular Tempest with a few performance options and the engine choice from the much more popular GTO model. This meant that buyers who had $3,000 to spend could get a car from 255 hp all the way up to 345 hp.
Pontiac advertised the GT-37 as a “GTO lite” but the car lacked exterior features like the famous Endura bumper and rear spoiler. For 1971, the famous 455 V8 was offered but it went in only a handful of cars. Simply, the GT-37 had the performance and the hardware but it didn’t have GTO`s appeal and image which resulted in very bad sales. In two years, Pontiac made only around 2000 of these misunderstood muscle cars.