Misunderstood Muscle: Underappreciated And Forgotten Muscle Cars

1971 GMC Sprint SP 454

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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.