Buick Grand National Gnx Tire Size

How much is a Grand National GNX worth?

The Buick GNX has held on to its value far better than most cars produced that year. Of course, any used car will have a range in prices. It often depends on things like mileage on the car as well as how well taken care of it is. The 1987 Buick GNX usually sells for between $80,000 and $150,000. via

What size wheels came in 87 Grand National?

Buick Grand National 1987 3.8T

Tire Rim
205/70HR14 5.5Jx14 ET0
215/65VR15 6Jx15 ET0


What's the difference between a GNX and a Grand National?

The GNX has all the interior features of a fully loaded Grand National, except for T-tops or a sunroof/moonroof (to increase structural integrity), although some customers may have opted to have a sunroof or T-tops retrofitted. via

What is special about a GNX?

The GNX featured modifications of the turbo-charged and intercooled 3.8-liter V6 engine used in the Grand National, as well as special wheels and tires, suspension and exhaust system modifications, analog instrument cluster and functional body modifications. The GNX was the quickest American car you could buy in 1987. via

What does GNX stand for?


Acronym Definition
GNX Grand National
GNX Grand National Experimental (General Motors)
GNX Global Net Exchange
GNX Grand National Extra (Buick)


How much horsepower does a GNX have?

The 3.8L V6 engine in the GNX was conservatively rated for 276 horsepower at 4,400 RPM and 360 lb-ft of torque at 3,000 RPM and backed by a prepared Turbo-HydraMatic 2004R transmission. The GNX could launch from 0-60 MPH in under five seconds and run a low 13-second quarter-mile. via

What size are Grand National wheels?

Grand National 15" x 7" Aluminum Wheels Rims, GBodyParts.com. via

What is the rarest Buick Grand National?

The Buick GNX, or the Grand National Experiment, developed with ASC McLaren as a 547-unit series, is a rare car even without the somewhat dubious distinction of low mileage. via

How fast is a Buick GNX?

The GNX could rip a 0-60 mph time of 4.6 seconds, and do a 13.5 second 103 mph quarter-mile, making it an absolute monster for the time. via

How many GNX Grand Nationals were made?

GNX: A limited-edition 1987 Grand National with special mods by ASC, including an improved engine package, recalibrated transmission, upgraded suspension, full-sweep Stewart-Warner instruments, and 16 x 8 wheels. Only 547 were produced. via

How do you know if a Grand National is real? (video)


Did Grand Nationals have T tops?

1) The Buick Regal Grand National debuted at the 1982 Daytona 500, not as the fire-breathing performance car it would become, but as an appearance package for the Buick Regal, featuring two-tone paint in grey and black, a T-top roof with removable panels, a rear spoiler, a console-mounted shifter, bucket seats and via

Was the Grand National Twin Turbo?

For another edition of “Impromptu Street Races,” this black Buick Regal Grand National comes equipped with a twin turbocharged LSX. That means it's always ready to hit absurd speeds. Here's a video showing this piece of American muscle displaying its incredible power. via

What's the difference between a regal and a Grand National?

The differences between a WE4 and the Grand National were the interior trim package, wheels, exterior badging, aluminum bumper supports, and aluminum rear drum brakes as opposed to the Grand National's cast iron, making the WE4 a lighter and faster car. via

How fast is a 1987 Buick Grand National?

This Buick featured an upgraded chassis to support the GNX's superior performance and also came with a top speed of 124 mph. The GNX was able to beat the regular Grand National's 0-to 60 time by more than a second. via

Was the Grand National the fastest production car?

Back in 1987 the fastest U.S. production car ever to be produced was the Buick Grand National/GNX. via

What turbo is on a Grand National?

Buick produced 1547 turbo-T models, 20,193 Grand Nationals and 547 GNXs, and the turbo-T is the lightest one of the bunch. The limited-production car was faster in the both 0-60 sprint and quarter-mile than the Grand National, but still behind the mighty GNX. via

Is a Grand National a muscle car?

Instead of a commemorative special option, it was now a muscle car with one of the hottest six-cylinders on the market. The Grand National of 1984 was already a serious contender as it debuted, with a quarter-mile time only a few tenths of a second off of the newly-introduced C4 Corvette. via

What color did the Buick GNX come in?

I was beginning to learn about cars that are iconic today, like the Buick Regal Grand National. That car, in particular, I found menacing-looking. Especially so, since the only color that Buick came in was black. So, imagine my surprise to find out decades later that black was not the sole color for it. via

How much did the GNX sell for at Barrett-Jackson?

On Saturday at Barrett-Jackson the last ever Buick Grand National rolled across the block and it did not disappoint. With only 33 miles on the odometer, the last car to ever come off the assembly line of the Pontiac, Michigan plant sold for a staggering $550,000. via

How much was a 1987 Buick GNX new?

Back in 1987, the Buick GNX carried an MSRP of around $29,389, or a nearly a tenth of what you can expect to pay for one with that kind of mileage in 2019. However, the cars did sell for more than that during their time, according to Brad Willingham, "They started hitting the east coast first and... via

How much is a 1987 Buick Grand National worth today?

According to Hagerty, the highest value for a Grand National is $53,800. The website suggests that car enthusiasts can purchase one of these cars for $35,700 in excellent condition, $22,200 for one in good condition, and many fans can get one for $15,500. via

How fast is a Buick GNX in a quarter mile?

The last Grand National we tested generated some impressive numbers. It ran to 60 mph in 4.9 seconds and clicked through the quarter-mile in 13.9 seconds at 98 mph. via

What is the fastest Buick?

Buick has announced that the Regal GS is the fastest Buick ever. It hit 162 mph at the Nevada Open Road Challenge, good enough for a second-place finish in the 135-mph class. via

What was Buick's muscle car?

The 1970 Buick GSX is perhaps the most famous muscle car that Buick built. See more muscle car pictures. Despite respected Buick muscle cars such as the GS 400 and mighty GSX, the "gentleman's car" division of General Motors was an unlikely source of high performance in the 1960s and early '70s. via

Is the Buick Grand National Coming Back?

This particular car is literally the end of that era, and it will have a new owner in January 2022 when it crosses the auction block with Barrett-Jackson. By literally the end, we mean this is the last Buick Grand National ever made. via

Who is Buick owned by?

Buick is owned by General Motors (GM). General Motors also owns GMC, Cadillac, and Chevrolet. Buick is a renowned automaker with a legendary history that goes back over 100 years. via

What year Buick Grand National is the best?

Introducing Buick Grand National

The inter-cooled models of the 1986 and 1987 Grand National series were the cars that earned the most amount of attention, despite the fact it had already had roots going as far back as 1982 with the Buick Regal line. via

How many T tops are in the Grand National?

All Regal Grand Nationals came with T-top roofs and front and rear spoilers. A total of 215 units were built, making it one of the rarest Grand Nationals. They were all built off of existing Regal units pulled off of the assembly line, so there are numerous deviations. via

What is a 1985 Grand National worth?

1985 Buick Regal Grand National

1985 Buick Grand National TMU Arlington, TX, USA $22,250 SOLD
1985 Buick Grand National 31,696 mi Harnett County, NC, USA $20,000 SOLD
1985 Buick Grand National Greensboro, NC, USA $16,000 HIGH BID
1985 Buick Grand National Indianapolis, IN, USA $12,500 HIGH BID


How many 1987 Grand Nationals had T tops?

About 9400 in all 87 Regals got the T-Tops and about 2560 in all Regals in 87 got the astroroof. via

How much horsepower does a 1987 Grand National have?

The GNX's 3.8-liter V-6 developed 276 horsepower at 4400 rpm, and 360 pound-feet of torque at just 2400 rpm, courtesy of an uprated Garrett ceramic vane turbocharger and recalibrated engine-management system. via

What is a Buick turbo T?

This car was known as Regal Limited Turbo-T, and it was one of the greatest “sleepers” the auto industry had ever seen. Only 1,035 were ever made. In comparison, Buick made 20,193 Grand Nationals in 1987. To be clear: The Turbo-T replaced the T-type from previous years. via

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