There's a particular kind of math that makes a Buick Grand National listing worth a second look, and this black 1987 car sitting on eBay out of Plainview, New York triggers it. The seller wants $45,000 — Buy It Now, no auction drama, $500 holds it — for an original, three-owner G-body wearing 79,000 miles. The interesting part isn't the number itself. It's where that number lands once you stack it against what these cars have actually been selling for this year.
Right now, the market is doing something contradictory. The headline-grabbing GNs are climbing, the average ones are sliding, and an honest, unmolested driver-grade example like this one is asking less than the segment's running benchmark. According to Classic.com, the Grand National's market benchmark sits at $48,438, with an average sale of $50,261 across 46 tracked sales. This car is listed under both figures.
What the comps say
Dig into the recent sold data and the spread is enormous. On the strong end, a 7,000-mile original car hammered for $79,200 at Barrett-Jackson in January, and a similar low-mileage example brought $75,000 on Bring a Trailer in March (Classic.com). A 39,000-mile original GN sold for $60,500 at Mecum in March. Those are the cream — preserved, low-mile, documented cars that live in climate-controlled garages and get driven to Cars & Coffee twice a year.
Drop down to cars that actually get used, though, and the picture shifts toward this listing. A 59,000-mile original GN went for $44,000 at Mecum in Fort Worth last October, and a clean-but-modified example sold for $40,350 on Bring a Trailer in March (Classic.com). The most recent sale on the books is a modified, 87,000-mile car that brought $35,200 at Mecum on June 5 — a useful reality check, since it's both higher-mileage and no longer stock.
That's the company this eBay car keeps: a driver-mileage, all-original, clean-title GN asking $45,000 sits right in the meat of the real-world transaction range, not the trophy-car stratosphere.
The Hagerty anchor
Here's where it gets genuinely interesting. Hagerty's Valuation Tool pegs a 1987 Grand National in #3 "Good" condition at $41,100 — and notes that figure is up 11.4 percent (Hagerty). The higher condition tiers sit behind a Hagerty account login, so I can't quote those directly here, but Hagerty's own valuation page elsewhere estimates roughly $50,880 for a good-condition, average-spec example.
So this car asks about $3,900 over Hagerty's #3 number and a hair under Hagerty's broader good-condition estimate. For a car the seller describes as original and "untouched," with a clean title and a verified clean odometer check, that's not a moonshot — it's arguably market-rate to slightly optimistic, depending entirely on how the paint and turbo six present in person.
The build, honestly
The fundamentals check out. This is the genuine article: the 3.8-liter (231ci) turbocharged, intercooled V6 that made the GN the fastest American production car of its day — 245 horsepower, 0-60 in the low sixes, all routed through a three-speed automatic to the rear wheels. Black over gray, two doors, the body style that closed out the rear-drive G-body era and that buyers have chased ever since.
The eBay specifics: VIN 1G4GJ1172HP463270, 79,000 miles, clean title, three owners on the AutoCheck report with the odometer and title both flagged "OK." The seller is a private party in Plainview with strong feedback, and the car is offered through eBay's Secure Purchase program. The notes are sparse — "all original," "untouched," "runs perfect" — which is both the appeal and the caveat. At this price, condition verification and a pre-purchase inspection do the heavy lifting.
Reading the room
Two recent data points sharpen the picture. The top recent sale in this market is a $95,700 modified GN at Barrett-Jackson in April (Classic.com) — proof the ceiling is still rising for standout cars. But just as telling: a 16,000-mile '87 GN was withdrawn from an ACC auction listed for June 12 (Classic.com), a reminder that not every seller is meeting the bids they want. The market is bifurcating — exceptional cars are pulling away while sellers of merely-good cars are testing buyers' patience.
That's the frame for this $45,000 fixed-price listing. It isn't a no-reserve auction climbing toward an unknown number; it's a take-it-or-leave-it figure that the seller has planted just below the benchmark and just above Hagerty's #3 line. If the car is as original as advertised, that's a defensible ask in a market where the genuinely nice driver-grade GN has quietly become the value play — caught between six-figure show cars and the modified, high-mileage cars now changing hands in the mid-$30Ks.
The turbo Buick that once humbled Corvettes is still doing the unexpected. Only now the surprise is on the spreadsheet.
Sources: eBay listing (build sheet, VIN, mileage, title, price); Classic.com (Grand National market benchmark, comparable sold prices, top sale, recent no-sale); Hagerty Valuation Tools (#3 condition value and trend). Higher Hagerty condition tiers were login-gated and are not quoted; the seller's condition claims are unverified.
