Misunderstood Muscle: Underappreciated And Forgotten Muscle Cars

1971 GMC Sprint SP 454

Dan Carr
Dan Carr

The GMC Sprint is the almost unknown sibling of the much more famous Chevrolet El Camino. Half car, half pickup truck, the Sprint was a unique vehicle for people who wanted the utility of a pickup with the driving characteristics of a car.

The SP package was GMC’s equivalent of Chevrolet’s “SS” trim and featured the same upgrades. The 454 cubic-inch big-block V8 was the engine of choice for owners corrupted by power, and in 1971 that engine pumped out 365-horsepower. This is a rarely talked about muscle car that can burn rubber and carry a sofa, at the same time.