1987 Buick Grand National GNX: The Ultimate Guide

The 1987 Buick Grand National GNX is more than just a car; it's a symbol of American muscle and automotive history. This limited-edition vehicle, produced in collaboration with McLaren Performance Technologies/ASC, took the already impressive Grand National and turned it into a true performance icon. With only 547 ever made, the GNX remains one of the most sought-after and valuable muscle cars of the 1980s. This article delves into the history, performance, design, and collectibility of the 1987 Buick Grand National GNX.

What Makes the 1987 Buick Grand National GNX Special?

The GNX, short for "Grand National Experimental," was Buick's final send-off for the rear-wheel-drive G-body platform and the turbocharged V6 engine that had become its signature. Several factors contribute to the GNX's legendary status:

• Limited Production: Only 547 units were produced, making it an instant collector's item.
• Enhanced Performance: Upgrades by McLaren Performance Technologies/ASC boosted horsepower and torque significantly.
• Unique Design: The GNX featured distinctive styling cues that set it apart from the standard Grand National.
• Historical Significance: It represents the pinnacle of Buick's performance era and the last of the classic muscle cars before the shift towards more fuel-efficient vehicles.

The History of the Buick Grand National GNX

To fully appreciate the GNX, it’s essential to understand its origins and the evolution of the Grand National. The Grand National name first appeared in 1982 on a Regal celebrating Buick's NASCAR Winston Cup Grand National Championship. However, the true Grand National era began in 1984 with a blacked-out Regal powered by a turbocharged 3.8-liter V6 engine.

The Grand National's Rise to Fame

• 1982: The first Grand National, a limited-edition Regal celebrating Buick’s NASCAR victory.
• 1984: The blacked-out Grand National with a turbocharged 3.8-liter V6 engine marked the beginning of its performance legacy.
• 1986: Intercooler added, power increased to 235 hp and 330 lb-ft of torque
• 1987: The final year of the G-body Grand National and the introduction of the GNX.

Buick wanted to ensure the 1987 Grand National went out with a bang, so they partnered with McLaren Performance Technologies/ASC to create something truly special. This collaboration resulted in the GNX, a car that would not only outperform its predecessors but also challenge contemporary sports cars.

The McLaren/ASC Partnership

McLaren Performance Technologies/ASC was tasked with enhancing the Grand National's performance and handling. The modifications included:

• Turbocharger Upgrade: A Garrett AiResearch turbocharger with a ceramic impeller and a more efficient intercooler.
• Engine Management System: A recalibrated engine control module (ECM) to optimize fuel and ignition timing.
• Transmission Modifications: A modified four-speed automatic transmission with a custom torque converter.
• Suspension Enhancements: Upgraded rear suspension with a torque arm and Panhard rod for improved traction and handling.
• Exterior Styling: Unique black mesh vents, fender flares, and a three-piece rear spoiler.

Performance and Specifications of the 1987 GNX

The GNX's performance figures were astonishing for its time, rivaling those of Ferraris and Corvettes. While Buick officially rated the GNX at 276 horsepower and 360 lb-ft of torque, independent tests revealed that the actual output was closer to 300 horsepower and 400 lb-ft of torque. These figures allowed the GNX to accelerate from 0 to 60 mph in approximately 4.7 seconds and run the quarter-mile in the low 13-second range.

Key Specifications:

• Engine: 3.8-liter Turbocharged V6
• Horsepower: Officially 276 hp (actual ~300 hp)
• Torque: Officially 360 lb-ft (actual ~400 lb-ft)
• Transmission: Four-speed automatic
• 0-60 mph: Approximately 4.7 seconds
• Quarter Mile: Low 13 seconds
• Production Numbers: 547 units

Technical Enhancements by McLaren/ASC

The enhancements made by McLaren/ASC were not just about adding power; they focused on improving the overall driving experience. The upgraded turbocharger provided quicker spool-up and reduced turbo lag, while the modified transmission ensured smooth and efficient power delivery. The suspension upgrades significantly improved handling and traction, making the GNX a formidable performer on both the street and the track. The use of a ceramic-impeller turbo was advanced tech for the time, improving responsiveness and durability. (Source: [Insert Reputable Automotive History Site Here])

The Distinctive Design of the GNX

The GNX's exterior design set it apart from the standard Grand National. The most noticeable features were the black mesh vents on the front fenders, the fender flares, and the three-piece rear spoiler. These elements gave the GNX a more aggressive and muscular appearance. All GNXs were finished in black paint, a signature of the Grand National series.

Key Design Features:

• Black Exterior: All GNXs were painted in black, a hallmark of the Grand National series.
• Black Mesh Vents: Unique vents on the front fenders for improved airflow and a distinctive look.
• Fender Flares: Added to accommodate wider tires and enhance the car's stance.
• Three-Piece Rear Spoiler: Provided improved aerodynamics and a sporty appearance.
• Unique Wheels: 16-inch black mesh wheels with GNX center caps.

Interior Features

The interior of the GNX was similar to the Grand National, featuring black cloth upholstery and a driver-focused cockpit. However, the GNX included a special instrument cluster with analog gauges, including a boost gauge, which was not present in the standard Grand National. A serialized plaque on the dashboard identified each GNX by its production number. The interior design was functional, prioritizing the driving experience over luxury. (Reference: [Insert Car and Driver or Similar Review Here])

The GNX as a Collector's Item

Today, the 1987 Buick Grand National GNX is highly coveted by collectors and enthusiasts. Its rarity, performance, and historical significance have made it one of the most valuable muscle cars of the 1980s. Prices for well-maintained GNXs can range from $100,000 to over $200,000, depending on condition, mileage, and originality.

Factors Affecting Value:

• Condition: Pristine, original examples command the highest prices.
• Mileage: Low-mileage GNXs are more valuable.
• Originality: Cars with original parts and documentation are highly sought after.
• Documentation: Original window stickers, build sheets, and service records can increase value.

The GNX's collectibility is further enhanced by its limited production numbers and its status as the ultimate expression of Buick's performance heritage. It represents a high point in American automotive engineering and design. (Data from: [Insert Collector Car Price Guide like Hagerty])

Maintaining and Restoring a GNX

Owning a GNX requires careful maintenance and, in some cases, restoration. Due to its age and rarity, finding original parts can be challenging, but a dedicated community of GNX enthusiasts and parts suppliers exists to support owners. Proper maintenance is crucial to preserving the car's value and performance.

Key Maintenance Tips:

• Regular Servicing: Follow the manufacturer's recommended maintenance schedule.
• Specialized Knowledge: Seek out mechanics familiar with turbocharged engines and the GNX's unique features.
• Parts Sourcing: Utilize online forums and specialty parts suppliers to find original or high-quality replacement parts.
• Climate Control: Store the car in a climate-controlled environment to prevent rust and deterioration.

Restoring a GNX can be a rewarding but expensive process. The key is to maintain originality whenever possible. Preserving the car's unique features and specifications will ensure its value and historical significance for years to come. (Consult Buick GNX Owner's Forums for detailed advice.) — Best Commercial Ceiling Fans 2025 Top-Rated And Reviewed

GNX vs. Grand National: What's the Difference?

While the GNX is based on the Grand National, several key differences set it apart:

• Performance: The GNX had a more powerful engine and improved suspension compared to the Grand National.
• Design: The GNX featured unique exterior styling cues, including black mesh vents, fender flares, and a three-piece rear spoiler.
• Production Numbers: Only 547 GNXs were produced, while the Grand National had a higher production volume.
• Price: The GNX commanded a higher price tag when new and continues to be more valuable in the collector car market.

These distinctions make the GNX a significantly more desirable and valuable car than the standard Grand National. The upgrades by McLaren/ASC transformed the Grand National into a true supercar of its era.

The Legacy of the 1987 Buick Grand National GNX

The 1987 Buick Grand National GNX remains an iconic symbol of American muscle car engineering. Its performance, design, and limited production numbers have solidified its place in automotive history. The GNX represents the pinnacle of Buick's performance era and a high point for American car manufacturing in the 1980s.

Lasting Impact

The GNX's legacy extends beyond its performance figures and design. It demonstrated the potential of turbocharged engines in American cars and influenced future generations of performance vehicles. Its collectibility and value continue to rise, making it a wise investment for car enthusiasts. The GNX is a testament to Buick's commitment to performance and innovation. (Read more about Buick's history on [Buick's Official Website]) — Germany Vs. Slovenia: EuroBasket Classic Showdown

Frequently Asked Questions (FAQ)

1. How many 1987 Buick Grand National GNXs were made?

Only 547 units of the 1987 Buick Grand National GNX were produced, making it a very rare and collectible car.

2. What is the horsepower of the 1987 Buick GNX?

While Buick officially rated the GNX at 276 horsepower, independent tests have shown that it actually produced closer to 300 horsepower. — Double Play Powerball Numbers: Everything You Need To Know

3. How fast is the 1987 Buick GNX?

The 1987 Buick GNX can accelerate from 0 to 60 mph in approximately 4.7 seconds and run the quarter-mile in the low 13-second range.

4. What makes the GNX different from the Grand National?

The GNX features several upgrades, including a more powerful engine, improved suspension, unique exterior styling, and lower production numbers compared to the standard Grand National.

5. How much is a 1987 Buick Grand National GNX worth?

The value of a 1987 Buick Grand National GNX can range from $100,000 to over $200,000, depending on condition, mileage, and originality.

6. Where can I find parts for a 1987 Buick GNX?

Parts for the 1987 Buick GNX can be found through online forums, specialty parts suppliers, and dedicated GNX enthusiast communities.

7. What is the significance of the GNX?

The GNX represents the pinnacle of Buick's performance era and is considered one of the most significant American muscle cars of the 1980s due to its limited production, enhanced performance, and unique design.

Conclusion

The 1987 Buick Grand National GNX is a true automotive legend. Its combination of performance, rarity, and iconic design has made it a prized possession for collectors and enthusiasts. Whether you're a long-time admirer or a newcomer to the world of classic cars, the GNX's story is one worth knowing. Its legacy continues to inspire and captivate, solidifying its place as a true American icon. If you're considering purchasing a classic muscle car, the GNX should be at the top of your list. Contact a reputable classic car dealer to explore your options and perhaps own a piece of automotive history.