Vehicle Profile

Buick GNX

1987 · Coupe · RWD

$29,290 USDOriginal MSRP (1987)

original 1987 MSRP. This is a price reference, not a current market valuation or an offer for sale.

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The ultimate Grand National, finished by ASC/McLaren with a larger turbo, revised intercooler and ceramic-impeller upgrades. Officially rated 276 hp and 360 lb-ft, though widely believed underrated, it ran the quarter mile in the low 13s and humbled exotics. Just 547 were built, making it a blue-chip collectible.

Buick GNXPHOTO TODO

Horsepower: 276 hp
Torque: 360 lb-ft
0–60 mph: 4.7s
Top Speed: 124 mph
¼ Mile: 13.4s
Drivetrain: RWD
Body Style: Coupe
Years: 1987
Original MSRP (1987): $29,290 USD

Sources & data notes

Catalog verification date (recorded): June 17, 2026. Recorded spec confidence: high.

These are the sources and review details stored with this catalog entry. They do not confirm today’s pricing, availability, or the value of an individual car.

Performance positioning

Compared with 467 cars in the Wheelz catalog.

Top Speed124 mph

Rank #432 / 4678th percentilehigher is better

Horsepower276 hp

Rank #351 / 46725th percentilehigher is better

0-60 mph4.7s

Rank #297 / 46736th percentilelower is better

Quarter Mile13.4s

Rank #238 / 38839th percentilelower is better