The Buick Grand National Experimental was created in partnership with ASC/McLaren to celebrate the end of the vehicle’s production run. All 547 examples were finished in black, and details specific to the GNX include a three-piece rear spoiler, composite wheel arch flares, heat-extracting fender vents, and GNX badging. Additional exterior details include an automatic power antenna, a rear window defogger, and sport mirrors. Aftermarket window tint film has been applied to the rear and side windows.
Factory 16″…
The Buick Grand National Experimental was created in partnership with ASC/McLaren to celebrate the end of the vehicle’s production run. All 547 examples were finished in black, and details specific to the GNX include a three-piece rear spoiler, composite wheel arch flares, heat-extracting fender vents, and GNX badging. Additional exterior details include an automatic power antenna, a rear window defogger, and sport mirrors. Aftermarket window tint film has been applied to the rear and side windows.
Factory 16″ basketweave wheels feature GNX-branded center caps along with chrome trim rings and are wrapped in Goodyear Eagle VR50 tires measuring 245/50 up front and 255/50 out back. The GNX features front suspension components from the contemporary Grand National, and upgraded rear components consisting of a Panhard rod and torque arm and an additional frame crossmember. Braking is handled by power-assisted front discs and rear drums.
The cabin features bucket seats upholstered in black and Sand Gray cloth, and the front headrests feature embroidered Turbo 6 logos. Additional amenities include a power-adjustable driver’s seat, air conditioning, cruise control, and a Delco AM/FM cassette stereo with a graphic equalizer. A plaque mounted to the passenger-side dashboard identifies this as car #114 and can be seen in the gallery below. The selling dealer notes that the headliner is sagging.
The leather-wrapped steering wheel frames GNX-specific Stewart Warner instrumentation consisting of a 160-mph speedometer, a tachometer, and gauges for boost pressure, oil pressure, coolant temperature, and fuel level. The five-digit mechanical odometer shows 759 miles.
The GNX features an ASC/McLaren-modified 3.8-liter V6 which is equipped with a Garrett T3 turbocharger under a heat shield with GNX lettering as well as a larger air-to-air intercooler and a low-restriction exhaust system. Factory-rated output was 276 horsepower and 360 lb-ft of torque. The selling dealer notes that the battery was replaced and an oil change was performed in preparation for the sale.
Power is sent to the rear wheels through a TH200-4R four-speed automatic transmission with a factory-upgraded oil cooler and a limited-slip differential that features a GNX-branded aluminum rear cover.
The window sticker lists initial delivery to Stitzer Buick-GMC in Indianapolis, Indiana, as well as standard and GNX-specific equipment and a total manufacturer’s suggested retail price of $29,290. A certificate of origin, manufacturer’s literature, and warranty information are also included in the sale along with a GNX book, jacket, and hat.