Produced in collaboration with McLaren Performance Technologies/ASC, the 1987 Buick GNX is powered by a turbocharged V6 paired with a 4-speed automatic transmission and limited-slip differential. This example is #073 of 547 cars produced during the single model year and it is finished in Black over a two-tone black and Sand Gray upholstered interior. Equipment includes 16″ cross-lace wheels, a Delco AM/FM/cassette stereo, air conditioning, and more. This Buick is now being offered for auction by its seller out of Texas showing less than 19k miles on the odometer.
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With all 547 examples finished in Black, the GNX features heat-extracting fender vents, flared wheel arches, a three-piece rear spoiler, and model-specific badging. It rides on 16” cross-lace wheels wrapped in BF Goodrich gForce Sport tires showing date codes from 2015-2021. Additional appointments include a power antenna and dual exhaust outlets. The seller reports that LED headlights have been fitted and the car to have been refinished approximately 6 years ago. Detailed images are provided in the gallery along with paint meter readings, and a clean CARFAX report.
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The cabin features black and Sand Gray cloth upholstered front bucket seats, a rear bench, and Turbo 6 embroidered headrests on the front seats. The driver’s seat is power-adjustable, and additional equipment includes a three-spoke leather-wrapped steering wheel, air conditioning, cruise control, power windows, and a Delco AM/FM/cassette stereo with a graphic equalizer. A plaque is mounted on the passenger side dashboard indicating this car to be #073. All gauges, electronics, and accessories are reported to function as intended, with no warning lights present.
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Powered by a turbocharged 3.8-liter V6, the Buick’s engine was modified by ASC/McLaren with a Garrett T3 turbocharger, mounted under a GNX-lettered heat shield, in addition to a larger air-to-air intercooler and a low-restriction exhaust system. The GNX sends up to 276 horsepower and 360 lb.-ft. of torque to its rear wheels by way of a Turbo-Hydramatic 200R4 4-speed automatic transmission with a factory-upgraded oil cooler and a limited-slip differential. Other factory performance equipment consists of front suspension components borrowed from the Grand National, upgraded rear components including a Panhard rod, torque arm, and an additional frame cross-member, with braking handled by power-assisted front discs and rear drums. The seller reports to have removed the resonator from the exhaust system, as well as having installed a remote starter system, and a larger aluminum radiator.
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This sale will include its original tires, a car cover, a battery charger, and a clean title.
The seller would like you to know: “Very nice low production number GNX”

Comments (27)
Bid in the amount of $85,000
Bid in the amount of $80,000
Bid in the amount of $79,000
Bid in the amount of $78,000
Bid in the amount of $75,000
Bid in the amount of $72,500
@doc8404 @doc8404. I was offered more than that from a dealer
Bid in the amount of $72,000
This A 100K car all day long I hope it gets the respect it deserves with bidding $$$$ (GKWA)
Bid in the amount of $69,500
Bid in the amount of $69,000
Bid in the amount of $68,000
Bid in the amount of $67,250
Bid in the amount of $67,000
Bid in the amount of $65,500
Bid in the amount of $65,000
Bid in the amount of $50,250
Additional content has been added to the gallery for this listing.
@vengerider I will get those posted in the morning , he dropped something on the roof and scratched it and no I do not have any documentation , however I can tell you the paint is as a mirror finish. I tried to show down the sides of the car in the video how clean and straight it is and that is hard to do on a black car.
@Lambogas Listing states paint meter readings are in the gallery but I don't see any....What was the reason for the repaint? Any receipts or photo documentation of it being painted?
Additional content has been added to the gallery for this listing.
@GrandNatty Speaker LED
@Lambogas - which aftermarket front headlights and high beams are those please?
Bid in the amount of $50,000
Additional content has been added to the gallery for this listing.
Hello everyone and welcome , please feel free to ask any questions or come and view or inspect prior to the auction ending