While the Buick GNX was already old at this point, its astounding engine was still the most powerful available, and Pontiac decided to use its proven turbocharged V6 powerplant for the new Trans-Am.

OK, so Bob Lutz might be doing a lot to save GM (or not, depending on who you ask), but one GM division that is really trying to regain its former glory is Buick. Chevy is the mainstream division.

The Buick Grand National and GNX Cut a Deep, Dark Path Through GM Muscle Car History. Back in the limelight in 2024 thanks to Kendrick Lamar, these hot Buicks defined American muscle in the 1980s.

The Buick GNX laid down a zero-to-60 time of 4.6 seconds, and continued on through the quarter mile in the low 13-second range. Pretty heady stuff in 1987, crushing that year’s Corvette times.

The Buick GNX’s turbocharged 3.8-liter V6 pushes out 276 hp and 360 lb-ft of torque. Last year, the same car was listed for auction, but bidding topped out at just $142,000. Only 574 examples of ...

In 1982 Buick introduced the Nascar-inspired Grand National package for the aging Regal. For a small sum you could get an optional turbocharged (but not intercooled) 3.8-liter V6 good for 180 hp ...

A 1987 Buick GNX with 262 miles on the odometer has been sold at auction for $205,000, which is the second-highest price paid for the model.

A 1987 Buick GNX has been sold on Ebay for $249,999, which is the highest price ever paid for one on the platform and second-highest ever.

Third 1987 Buick Regal GNX will be auctioned in January. You might have read about and seen this very model back in the day. Sven Gustafson. Nov 13, 2017 11:34 AM EST. Featured Gallery.

While the Buick GNX was already old at this point, its astounding engine was still the most powerful available, and Pontiac decided to use its proven turbocharged V6 powerplant for the new Trans-Am.