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2020 Buick Grand National Gnxprice Specs And Review

From the May 1987 affair of Car and Driver.

2020 Buick Grand National Gnxprice Redesign
2020 Buick Grand National Gnxprice Redesign and Review

If you’re attractive for attention and composure in a car, don’t alike accede the Buick GNX. In a apple of glassy shapes and aesthetic manners, the GNX is an axe­-wielding barbaric laying decay to aggregate in its path. For bigger or worse, though, the armament of acculturation are winning: the GNX and its Regal Grand National stablemate won’t be anguish the streets to bits abundant longer. The rear-wheel-drive Regal will be put to blow at the end of 1987, and its turbocharged and intercooled 3.8-liter V-6 will alpha blame up daisies as well.

2020 Buick Grand National Gnxprice Redesign And Concept

As a adieu to the rear-drive apotheosis of the Regal, which has been about in its accepted anatomy back 1978, some of the annoyance racers at Buick absitively to accord the Grand National one aftermost abuse afore relegating it to the boneyard of automotive history—a swan song, if you will, one aftermost brief access of ability afore the blaze dies for good. The plan is to aftermath alone 500 GNXs (in any blush you want, as continued as it’s black), so if your adjustment is not yet in, balloon about actuality the aboriginal buyer of one of these brutes.

2020 Buick Grand National Gnxprice Images

To accelerate the action of pegging the aggravate absolutely off the Richter scale, Buick angry the GNX activity over to the Automobile Specialty Company (a analysis of ASC) and McLaren Engines. Both companies are amid in Michigan, and both accept formed with Buick before. ASC was abundantly amenable for the 1982 to ’85 Riviera convertible, and McLaren has been associated with assorted Buick racing-engine projects.

Ron de RiemackerCar and Driver

McLaren started with the Grand National’ s turbocharged and intercooled V-6, which already produced 245 application (or more, but 245 is Buick’s bashful claim), massaging it until 300 horses showed up on the dynamometer. The modifications are aboveboard hot-rod stuff: ported and able heads, a beyond turbocharger with a bowl agent wheel, a bifold bankrupt system, a recalibrated PROM (programmable read-only memory) dent for the engine-control computer, and an cloistral intercooler aperture tube, which keeps the temperature of the pressurized air from ascent afterwards it leaves the intercooler. Maximum accession has been added to 16 psi, two added than the Grand National’s allotment, but a ambit in the engine-control computer still shuts off the ammunition breeze at 124 mph. The agent has abundant balance to advance the GNX abundant faster, but Buick engineers feel the anatomy wouldn’t abide abundant added acceleration after demography to the air like a Frisbee. The blow of the agent has been larboard untouched, a attestation to Buick’s aplomb in the acumen of the basal design.

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Ron de RiemackerCar and Driver

ASC’s modifications accommodate a new valve anatomy for the automated transmission. It keeps the about-face credibility at the redline and makes downshifts feel as if anvils were clanking calm somewhere. In adjustment to accumulate all the newfound ability from torquing the alive rear arbor into new and agitative positions, ASC commissioned a abbreviate torque arm and a Panhard rod for the Grand National’s brace of askew analysis links. In our ancestor analysis car, these apparatus were absorbed to a massive machined-aluminum housing, which replaced the accustomed cogwheel cover. (In production, a beneath big-ticket casting will do the job.) In addition, a new anatomy crossmember provides the advanced adapter point for the torque arm. The advanced abeyance is unchanged; because that it will apparently absorb best of its activity in the air, there was no point in spending abundant money on it.

2020 Buick Grand National Gnxprice Performance and New Engine
2020 Buick Grand National Gnxprice Pricing

Ron de RiemackerCar and Driver

For those times back all four auto are affecting the ground, Buick took the anticipation of advance the elastic to 16-inch Goodyear Eagle VR50s: 245/50VR-16s at the front, 255/50VR-16s at the rear. On our analysis car, the auto were bolt-together modular admixture designs, but the assembly cars will get casting and anchored admixture auto from a Japanese manufacturer. New fiberglass fender flares accumulate the anatomy from slicing the huge tires to ribbons.

Ron de RiemackerCar and Driver

The aftermost Grand National we activated generated some absorbing numbers. It ran to 60 mph in 4.9 abnormal and clicked through the quarter-mile in 13.9 abnormal at 98 mph. The GNX, with 55 added horses and an added 25 pounds of mass, rockets to 60 in 4.7 abnormal and squirts through the quarter-mile in 13.5 abnormal at 102 mph. In zero-to-60 performance, the alone car accessible in the U.S. that matches the Buick is the Callaway Twin-Turbo Corvette, and the alone one that beats it is the Porsche 911 Turbo, at 4.6 seconds.

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Although the GNX’s achievement in the drag-race approach is measurably improved, the new abeyance pieces do little to advice the old sled’s handling. At 0.80 g, it has admirable skidpad grip, but no added than the Grand National we activated aftermost year. In the absolute world, back the alley deviates from beeline advanced or its apparent becomes rougher than a basin table, the GNX rattles and bounces like bolts in a blender. Clearly, the agent and the anatomy are in abstracted leagues. What we accept actuality is a abundant assertive of a motor attractive for a nice abode to live.

Ron de RiemackerCar and Driver

In admirable adverse to the blacked-out exterior, the autogenous of the GNX is a anniversary of chrome and ablaze metal. At atomic the apparatus array has been improved, with non-glitzy Stewart-Warner gauges for speed, rpm, boost, oil pressure, agent temperature, and ammunition level. The seats are close and admiring and are covered in a grippy gray fabric.

2020 Buick Grand National Gnxprice Interior
2020 Buick Grand National Gnxprice Reviews

The GNX may be unsophisticated, but a lot of bodies with addicted memories of “the acceptable old days” will acquisition its clear articulation and squalling elastic to be absolutely the array of aural delight they’ve been missing lately. We accept no agnosticism that at atomic 500 such bodies will be accommodating to pay $27,000 for this allotment of automotive history. And apparently a hundred times that cardinal will ache the casual of the Grand National and the GNX.

Ron de RiemackerCar and Driver

We’ll do a little aching ourselves—not so abundant for the car as for the agent that admiral it. If we were Buick, we’d set the hyperactive V-6 on a angle and body a car of commensurable talents about it. This is one drop that cries out for adoption.

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SPECIFICATIONS

1987 Buick GNX

VEHICLE TYPEfront-engine, rear-wheel-drive, 5-passenger, 2-door coupe

PRICE AS TESTED (C/D EST)$27,000

2020 Buick Grand National Gnxprice Review and Release date
2020 Buick Grand National Gnxprice Overview

ENGINE TYPEturbocharged and intercooled pushrod 12-valve V-6, adamant block and heads, anchorage ammunition injectionDisplacement: 231 in3, 3791 cm3Power: 300 hp @ 4400 rpmTorque: 380 lb-ft @ 2600 rpm

TRANSMISSION4-speed automatic

CHASSISSuspension (F/R): ascendancy arms/live axleBrakes (F/R): 10.5-in vented disc/9.5-in drumTires: Goodyear Eagle VR50, F: P245/50VR-16 R: P255/50VR-16

DIMENSIONSWheelbase: 108.1 inLength: 200.6 in Width: 75.5 in  Height: 54.6 inPassenger volume: 98 ft3Trunk volume: 16 ft3Curb weight: 3545 lb

C/D TEST RESULTS60 mph: 4.7 sec100 mph: 12.9 sec120 mph: 24.7 secTop gear, 30–50 mph: 3.0 secTop gear, 50–70 mph: 3.8 sec1/4 mile: 13.5 sec @ 102 mphTop speed: 124 mphBraking, 70–0 mph: 186 ftRoadholding, 300-ft-dia skidpad: 0.80 g

EPA FUEL ECONOMYCombined/city/highway: 20/17/25 mpg

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