1987 Buick GNX for Sale in New York

ASC/McLaren-built performance package with a Garrett T3 turbocharger, larger air-to-air intercooler, and low-restriction exhaust — factory-rated at 276 hp and 360 lb-ft from the 3.8L V6, paired with a 200R4 four-speed automatic and limited-slip differential. GNX-specific Stewart-Warner instrumentation (digital speedo, 8k-rpm tach, boost/oil/coolant/fuel gauges) and Turbo 6 embroidery on the front headrests — interior details exclusive to the GNX within the Buick Regal lineup. All GNXs were finished in black over the two-tone black and Sand Gray cloth interior — color is not a rarity differentiator for this model, but the GNX-specific fender vents, composite wheel arch flares, three-piece rear spoiler, and 16″ cross-lace wheels distinguish it from a standard Grand National. Upgraded rear suspension (Panhard rod, torque arm, additional frame crossmember) over the contemporary Grand National, plus a GNX-branded aluminum differential cover and factory-upgraded automatic transmission oil cooler.