The GNX was an evolution of the Buick Grand National and featured a turbocharged 3.8-liter V6 officially rated at 276 hp, but suspected to put out much more, that made it one of the quickest cars in the world in its day.
Its 0-60 mph time, as tested by Car and Driver, era 4.6 seconds and bested only by the Porsche 911 Turbo’s 4.5 second sprint.
Solo 547 were built in collaboration with ASC/McLaren with a list price of $ 29,290 and one color option: black.
Not everyone took advantage of their performance, tuttavia, as ultra-low mileage versions like this one, which was sold on Bring A Trailer often show up for auction.
An example with just 8.5 miles on it was sold on the online auction site for $ 200,000 nel 2019, while the final one ever built went for $ 220,000 at a Mecum Auctions event in 2017.