This 1986 Buick Grand National was delivered new to Schepel Buick, Inc. of Merrillville, Indiana, and was previously listed on BaT in July 2021 and a sold on BaT in May 2023 before it was acquired by the selling dealer in 2025. Power comes from a turbocharged and intercooled 3.8-liter V6 paired with a four-speed automatic transmission, and the car is finished in black over two-tone black and Sand Gray cloth upholstery. Factory equipment includes a TurboTweak computer chip, 15” chrome wheels, front and rear spoilers, a power-adjustable driver’s seat, a Delco AM/FM/cassette stereo, and a security system along with air conditioning, cruise control, and power door locks and windows. This Grand National shows 9k miles and is offered with a window sticker, manufacturer’s literature, a spare GM muffler, a clean Carfax report, and a New Hampshire title.
The car is finished in black and features front and rear spoilers, an automatic power antenna, sport mirrors, a rear window defogger, dual exhaust outlets, and Grand National badges on the fenders and trunk lid. Flaws include a ding near the front edge of the hood and a blemish on the passenger-side door. The selling dealer states that paintless dent removal was done under prior ownership and a paint correction service was commissioned and completed in 2025, adding that previously-noted dents and scratches are no longer present. Close-up photos are provided in the gallery.
Factory 15″ wheels feature a bright finish with black accents and are mounted with BFGoodrich Radial T/A tires measuring 215/65. One of the wheels was reportedly replaced by the first owner and shows a 1988 date code. Braking is handled by power-assisted front discs and rear drums, and corrosion is present on the suspension components.
The cabin features front bucket seats and a rear bench upholstered in black and Sand Gray cloth, with Turbo 6 embroidery on the front seat headrests. Interior appointments include a power-adjustable driver’s seat, air conditioning, cruise control, power windows, a factory security system, a carpeted trunk, and a Delco AM/FM/cassette stereo with a graphic equalizer.
A leather-wrapped steering wheel frames a horizontal 85-mph speedometer and a fuel level gauge along with a digital tachometer and boost pressure gauge. The five-digit odometer shows 9k miles, a handful of which have been added by the selling dealer. A 2023 Carfax report entry displays a mileage entry of 99,999 miles.
The turbocharged and intercooled 3.8-liter V6 was factory rated at 235 horsepower and 330 lb-ft of torque. A TurboTweak computer chip has been installed and recent work consisted of replacing the battery and hood strut and performing an oil change.
Power is sent to the rear wheels through a four-speed automatic transmission. The catalytic converter is missing its heat shield and there is a hole in the muffler.
The window sticker shows initial delivery to Schepel Buick, Inc. of Merrillville, Indiana, as well as factory colors, equipment, and a total amount of $17,601. Manufacturer’s literature is included in the sale along with a 1990 recall notice for the brake combination valve.
The Carfax report is free of accident or damage entries.
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