What Happened to Buick GNX?

Buick GNX was the ultimate evolution of the turbocharged Grand National—a one-year, 1987 collaboration with ASC/McLaren that capped Buick’s dark, stealthy muscle-car era. Officially rated at 276 hp and 360 lb-ft, contemporary testing and lore suggest actual output over 300 hp, backed by suspension, transmission, and cooling upgrades that made the GNX a street legend. Only 547 examples were produced, all in black, and many were pre-sold to collectors; the run ended as the Regal platform transitioned, closing the book on Buick’s factory turbo coupe.

In the 21st century the GNX’s profile has surged again, helped by nostalgia for analog performance and by Kendrick Lamar’s 2024 album, "GNX", which put the name and car on a global stage. Auction headlines, feature retrospectives, and social spikes followed, as a new audience discovered why the GNX routinely beat bigger-displacement rivals in period tests. Today the car stands at the intersection of ’80s performance history, limited-edition scarcity, and modern pop culture. For enthusiasts, it’s both a technical milestone—a turbo V6 hero when V8s dominated—and a symbol of how a single-year halo model can outgrow its era to become a true cultural artifact.