For performance enthusiasts, the 1980s did not begin on a promising note. Auto manufacturers were submerged in a deluge of government regulations covering safety, fuel economy and exhaust emissions; performance cars received little thought and even less effort.

Nevertheless, Buick managed to add to its long performance history with the Regal Grand National. Based on a front engine, rear drive Regal/Malibu platform, the company made an attempt to meet the demands from starved enthusiasts with its turbocharged V-6. Since American big-block V-8s were largely extinct by the mid-1970s, Buick engineers experimented with turbocharging the 231 cubic inch V-6, and their first high-profile effort, a 307-hp Century in 1976, was the first V-6-powered Indianapolis 500 pace car.

The chiseled lines of the new-for-1978 Regal helped Buick take the NASCAR manufacturer’s title for 1981 and 1982, and to celebrate, the first Grand National Regal appeared in 1982, in naturally aspirated and turbocharged form. The option returned in 1984, now only with a turbocharged V-6 engine, an all-black exterior, aluminum wheels, special seats, high-performance underpinnings and unique badges.

This steady development and intercooling on the factory production vehicle raised output to 245-hp by 1986, creating America’s quickest production car. So much so, it also inspired a limited run of turbo Regals for FBI use. The Grand National, so named for its acclaimed connection to the NASCAR racing series, offered a turbo at a time when most Americans were accustomed to seeing such technology in upmarket models like the Porsche 930. Out of the approximate 10,000 Grand Nationals produced, only 547 GNX versions were to be built. The 1987s were the last rear-wheel drive turbos to be produced by Buick and proved to be so popular that production lines stayed open through December, long after the switch to the 1988 cars was due.

The building of the GNX occurred midway through the Grand National’s production run; Buick authorized this limited run of 547 specials that had this three-letter designation. To help promote this limited availability Buick; the company ran enthusiast magazine ads that asserted the GNX as “A high-performance investment for the Fortunate 500.” The idea was that the new GNX would combine the basic performance platforms with the latest electronics and turbocharging to create the ultimate modern musclecar and quickest GM production car in history. These performance enhancements, coupled with the standard Regal luxury power options and air conditioning, created an instant classic.

Built by ASC/McLaren; the builders of the 24-valve Buick turbo V-6 engines for Indy, the GNX used a high-performance Garrett turbo with a ceramic impeller, improved intercooler, revised engine management calibration, high performance transmission valving and free-flow exhaust. Output was boosted to over 275-hp, and torque was rated at 360-lb/ft. Larger tires, special black laced-type alloy wheels, a rear axle torque arm and Panhard bar, plus added frame stiffening were standard fare for the beefed-up GNX package. Front fender vents helped engine cooling, while an analog gauge instrument panel and logo array completed the package, which already included a full load of factory options.

The GNX offered here is number 284 of 547 and a very special example indeed, in that it has only 96 original miles showing on its odometer since it was taken off the lot. It is almost certainly one of, if not the lowest mileage example in existence and as such, it remains in absolutely spectacular condition throughout and is virtually new in every respect, both inside and out! Like all GNXs, it is finished in Black, equipped with such comfort features as two-tone black and gray bucket seats with an embroidered logo, center console; power windows, door locks and seats as well as the aforementioned air conditioning; plus tilt steering, cruise control and a factory stereo.

Aside from its extreme rarity, this GNX is a very exceptional example, perfectly maintained and provides you a rare opportunity to purchase what is essentially a brand new vintage musclecar. It is complete with all books and is sure to earn “survivor status” at any major Buick or musclecar event.

Many feel that the turbocharged Buick Grand National is one of the finest, most sophisticated American cars ever built. At minimum, this GNX remains a great example of one of the fastest and most legendary American performance icons of the 1980s.