37. Shelby GT500KR
In 1968, Ford introduced the 428 Cobra Jet engine and Shelby wanted to use it in his line of Mustangs. He wanted to do something special, so the result was the GT500 KR for “King of the Road.” They rated the 428 Cobra Jet at 335 HP, but everybody knew the engine delivered more than 400 HP and 400 lb-ft of torque.
Ford limited the production at 1,053 and they loaded the GT500KR was with interior trimmings and luxuries. Unfortunately, they only produced the GT500KR for the 1968 model year only, dropping the version for 1969.