GMC Classic Cars
Specs, history, and buyer's guides for every collectible GMC.
GMC 100
1947β1955GMC's "New Design" half-ton β Chevrolet's Advance Design pickup under GMC badging and its own model numbers.
Built alongside the Chevrolet Advance Design trucks on the same basic chassis and cab, GMC marketed its version as the "New Design" line with its own model-number scheme β the 100 was the half-ton, with 150 and 250 covering heavier ratings. GMC trucks of this era are less commonly seen than their Chevrolet siblings today, which appeals to collectors who want the same classic styling with a rarer badge.
GMC Sierra
1973β1998From a top-tier trim package to GMC's flagship truck name β the Sierra identity that still leads their lineup today.
Sierra began in 1973 as GMC's top trim package on the C/K pickup β the direct counterpart to Chevrolet's Cheyenne, and part of the same badge-engineered platform. Ford-fighting positioning aside, GMC leaned on Sierra to differentiate its trucks as the more upscale alternative to Chevrolet's version of the same vehicle, and by 1988 (with the GMT400 generation) Sierra had grown from a trim option into the model name itself, a position it still holds today.
GMC Suburban
1967β1972GM's "Action Line" era Suburban β a genuinely capable full-size hauler, badge-engineered from Chevrolet but marketed toward a more upscale buyer.
Sharing its platform and mechanicals with the contemporary Chevrolet Suburban but distinguished by GMC-specific trim, grille, and engine options, the 1967β72 "Action Line" generation represented the SUV's formative years β before "sport utility" was even a recognized category β as a genuinely practical three-door wagon built on a truck chassis. GMC's traditional positioning as the more upscale, better-equipped counterpart to Chevrolet trucks gives this generation a slightly different collector identity than its more common Chevy sibling.
GMC Syclone
1991A one-year-only turbocharged, all-wheel-drive compact pickup that could out-accelerate a Ferrari 348 to 60 mph.
Built for a single model year in genuinely small numbers, the Syclone took GMC's ordinary S-15 compact pickup and transformed it with a turbocharged, intercooled V6 and a sophisticated all-wheel-drive system borrowed from GM's performance car programs β producing a genuinely shocking amount of straight-line performance from a vehicle that looked, at a glance, like an unremarkable small truck. Period road tests recording it beating contemporary exotics to 60 mph made it an instant cult classic.