Someone Just Sold A 1987 Buick GNX With Only 30 Miles... You Won't Believe The PriceGuessing HeadlightsAndre NalinSun, September 27, 2026 at 6:00 PM UTCAdd us on GoogleImage Credit: Bring a Trailer.Incredibly, there are fun performance cars out there that somehow make it through nearly four decades looking like someone forgot they were supposed to be driven.This 1987 Buick GNX is definitely one of those! Despite leaving the factory almost 40 years ago, its odometer shows just 30 miles, which is both awesome and sacrilegious at the same time.It's also one of only 547 GNXs built during the model's single-year production run. A plaque on the dashboard identifies this particular car as GNX #450.AdvertisementAdvertisementBring a Trailer recently put the virtually untouched Buick under the hammer, where bidders decided that a low-mileage 1980s performance coupe was worth supercar money. When the auction ended on September 24, the winning bid stood at an astonishing $427,000.The GNX Was Buick's Ultimate Send-OffImage Credit: Bring a Trailer.The Grand National Experimental was developed with McLaren Performance Technologies/ASC to celebrate the end of the Grand National's production run. Every one of the 547 examples was painted black, with fender vents, composite wheel-arch flares, a three-piece rear spoiler, and GNX badging to help distinguish it from the regular Grand National.Under the hood sits Buick's turbocharged 3.8-liter V6, modified with a Garrett T3 turbocharger, a larger air-to-air intercooler, and a freer-flowing exhaust. Factory output was rated at 276 horsepower and 360 lb-ft of torque.Power goes exclusively to the rear wheels through a 200R4 four-speed automatic and limited-slip differential. ASC/McLaren also upgraded the rear suspension with a Panhard rod, torque arm, and additional frame crossmember.Thirty Miles In Nearly Four DecadesImage Credit: Bring a Trailer.Finding any GNX with mileage this low would be remarkable, but the condition of #450 makes the number easier to believe. Its black-finished 16-inch cross-lace wheels still wear Goodyear Eagle VR50 tires, while the cabin retains its black and Sand Gray cloth upholstery.AdvertisementAdvertisementGNX-specific Stewart-Warner gauges include a 160 mph speedometer, tachometer, and gauges for boost, oil pressure, and coolant temperature.Bring a Trailer says the Carfax report shows no accidents or other reported damage. The car was also accompanied by manufacturer literature, memorabilia, and copies of its original window sticker.$427,000 Buys Some Serious MachineryImage Credit: Bring a Trailer.The sale price puts this Buick into some extraordinary modern-car territory. Yet comparing it with a new performance car somewhat misses the point.There are plenty of fast cars you can buy for $427,000, but Buick isn't building any more GNXs, and finding another with only 30 miles won't be easy. Whoever bought #450 now has to decide whether to preserve those 30 miles forever or finally give this GNX the life it was built for. I have a feeling it won't be driven in anger anytime soon.AdvertisementAdvertisementWould you put some miles on this old Buick, or would you keep it locked up as a museum piece? Let us know in the comments.If you want more stories like this, follow Guessing Headlights on Yahoo so you don't miss what's coming next.
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