Buick Beat the Corvette to 60 MPH in 1987 With a Sedan Nobody Respected — Then Kendrick Lamar Named an Album After It

A turbocharged Buick built off a family sedan outran the 1987 Corvette to 60 mph, and NASCAR once sued the company over the car’s name. Only 547 of the ultimate GNX variant were built — and Kendrick Lamar owns one.

In 1987, Chevrolet built the Corvette — America’s dedicated sports car, powered by a 5.7-liter V8 with a race-bred pedigree — and it needed 5.7 seconds to hit 60 mph. That same year, Buick took the aging G-body platform underneath a mid-size family sedan, bolted on a turbocharged V6 that GM’s own engineers deliberately underrated on paper, painted the whole car black on black on black, and built something that got to 60 in 4.9 seconds. It beat the Corvette. It beat the Mustang GT. It beat the Camaro IROC-Z. Car and Driver clocked it closer to a Lamborghini Countach than to anything wearing a Chevrolet badge. Buick called it the Grand National, and by the time the run ended in 1987, it had become the fastest car General Motors sold — full stop, no asterisk for “fastest domestic six-cylinder” needed. Nearly forty years later, Kendrick Lamar bought one, put it on an album cover, and named the whole record after its rarest, meanest variant.

Donut Media’s “Up to Speed” series built its reputation on exactly this kind of car — the one everybody half-remembers but nobody can fully explain — and their Grand National episode does the full teardown: how a brand best known for cushioned rides and hood ornaments ended up building the quickest thing on an American dealer lot, using boost pressure instead of cubic inches. The episode leans on rare period footage supplied by RK Motors Charlotte, tracing the car from its unglamorous debut as a mid-size trim package to the blacked-out legend it became.

What makes the story land is how little anyone expected it. Buick spent the late 1970s and early 1980s as GM’s conservative, comfort-first division — Park Avenues and LeSabres, not stoplight ambushes. A turbocharged six-cylinder wasn’t even a novel idea by 1982; it was a fuel-crisis-era compromise everyone assumed would be slow. Buick’s engineers had other plans, and the results caught the rest of Detroit flat-footed.

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A Name Buick Had to Fight NASCAR to Keep

The “Grand National” name wasn’t a marketing department invention — it was earned on a race track. Darrell Waltrip drove factory-backed Buick Regals to back-to-back NASCAR Winston Cup championships in 1981 and 1982, and Buick named its new Regal special edition after the series it had just dominated. There was one problem: NASCAR’s premier championship had been called the “Grand National” series for over two decades and considered the name its own property, and when Buick started selling street cars under that badge, NASCAR sued. Buick kept the name after the legal dust settled, but the nameplate that emerged — a turbo-six emblem, “Grand National” stacked in block letters, a checkered flag — became one of the most recognizable badges of the entire decade.

From Insurance-Friendly Sedan to Corvette Hunter

That first 1982 Grand National wasn’t even turbocharged — it was a naturally aspirated V8, built in tiny numbers, closer to a trim package than a performance statement. The car that earned the legend didn’t show up until the mid-1980s, once the turbocharged, intercooled 3.8-liter V6 was fully sorted. Under the hood sat a Garrett T3 turbocharger feeding a cast-iron 3.8-liter block with sequential electronic fuel injection, forged pistons, a nodular iron crankshaft, and four-bolt main bearings built to survive real boost pressure. Buick added a front-mounted air-to-air intercooler for the 1986 model year, which dropped intake charge temperatures enough to safely run 14 to 15 psi of boost without detonation, and horsepower climbed from 235 in 1986 to a factory-rated 245 by 1987, backed by 355 lb-ft of torque routed through a reinforced 200-4R four-speed automatic.

Those numbers look modest next to a modern turbo engine, but in 1987 they were enough to run 0-60 in 4.9 seconds and the quarter-mile in the mid-13s. Car and Driver put a Grand National on the cover and clocked it quicker than a Corvette, a Porsche 944 Turbo, and a Porsche 928S, describing it as capable of outrunning nearly anything short of an exotic. Dealers who’d spent a decade selling Buicks on comfort and reliability suddenly had a car that could embarrass a Camaro at a stoplight, and it caught the rest of GM’s performance lineup off guard.

The twist is that Buick had pulled a version of this stunt once before. In 1970, at the absolute peak of the muscle car era, the Buick GS 455 Stage 1 quietly put out 360 horsepower and a domestic-record 510 lb-ft of torque — a torque figure no other muscle car would beat for 33 years — and ran the quarter-mile in 13.38 seconds at 106 mph. Enthusiasts nicknamed it the “Hemi killer.” Buick wasn’t supposed to be the brand that embarrassed Mopar and Chevrolet at the drag strip, and it did it twice, seventeen years apart, using two completely different routes to get there: big-inch torque in 1970, small-inch turbocharged boost in 1987.

The GNX: Buick’s Blacked-Out Send-Off

Buick didn’t just let the Grand National coast into retirement. For the final model year, the division partnered with ASC/McLaren to build a send-off variant called the GNX — Grand National Experimental — and gave it ported cylinder heads, a freer-flowing dual exhaust, a reworked engine control module, and a further-reinforced 200-4R transmission built to survive the extra abuse. Buick officially rated the GNX at 276 horsepower and 360 lb-ft of torque, figures most owners and independent dyno tests believed were conservative by a wide margin, with real-world output closer to 300 horsepower and well over 400 lb-ft of torque at the wheels. Car and Driver ran a GNX to 60 mph in 4.7 seconds and through the quarter-mile in 13.5 seconds at 102 mph — supercar territory for 1987, out of a turbocharged six-cylinder sedan. Buick built only 547 of them, and the combination of scarcity, menace, and giant-killing performance has made the GNX one of the most collectible American cars of its decade.

That scarcity shows up directly in what they cost today. Hagerty’s valuation guide prices a GNX in good condition at roughly $125,000, with concours-quality examples pushing past $250,000, and the broader auction market backs that up: two separate GNXs sold for over $150,000 at RM Sotheby’s in 2025, and a 2,200-mile example ignited a bidding war on Bring a Trailer before selling for $230,000. Standard Grand Nationals, built in far larger numbers, trade for a fraction of that, but even they’ve climbed steadily as the generation that grew up watching them run stoplight ambushes now has the money to buy one back.

Why Kendrick Lamar (and Everyone Else) Still Wants One

The GNX has never really left pop culture — its blacked-out silhouette shows up in movies and TV whenever a scene needs a car that looks dangerous without saying a word — but its highest-profile modern moment came in November 2024, when Kendrick Lamar released his sixth studio album under the title “GNX,” with the cover art built around his own 1987 Buick GNX. The connection wasn’t a stylist’s idea: Lamar was born in 1987, the same year Buick built the GNX, and he’d previously described being driven home from the hospital as a baby in his father’s Buick Regal. He bought his own GNX earlier that year and told fans on Instagram that “the best thing you can do is find a GNX.”

The formula that made the Grand National work — boost instead of bore, restraint on the spec sheet and violence on the street — is also the formula half the muscle car world eventually copied, from turbocharged EcoBoost Mustangs to modern forced-induction performance sedans across the industry. The Grand National didn’t just beat the Corvette to 60 mph in 1987. It previewed where American performance cars were headed next, and it did it from a division nobody was watching.

The turbocharged 3.8-liter also turned out to be one of the most tunable engines GM ever built, and the aftermarket noticed almost immediately. A stock 1986 Grand National could clear the quarter-mile in under 14 seconds with nothing more than a boost controller and better tires, and the platform’s ease of modification — forged internals, a factory turbo, and a torque-friendly automatic already built into the car — turned it into one of the most popular budget drag builds of the following three decades. One heavily built 1987 Grand National, tuned by respected engine builder Kenny Duttweiler with a 209-cubic-inch twin-turbo V6 making roughly 1,292 horsepower, set three NHRA records and became the first Super Stock car to break into the seven-second quarter-mile bracket, running 7.98 seconds at over 172 mph — numbers that would embarrass plenty of purpose-built race cars, let alone a Regal.

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