1970 Buick GSX: A Muscle Car Icon of the ’70s

Muscle cars have a unique ability to capture our imagination and ignite our passion for automotive excellence. The 1970 Buick GSX Prototype Show Car holds a special place in the hearts of car enthusiasts, embodying power, style, and innovation. Let’s embark on a journey through the history and allure of this remarkable vehicle.

Early Influences: A Childhood Obsession

Many of us develop a fascination for cars during our formative years. Whether it’s a family member’s vehicle or the allure of the open road, these experiences shape our automotive preferences. For the author, it was the exposure to muscle cars, particularly those with the Buick tri shield emblem, that ignited a lifelong passion.

The author’s connection to the Buick brand started with an unassuming 1972 Buick Skylark. While it may have seemed like an ordinary car, it played a pivotal role in kindling the author’s love for muscle cars. Despite its unremarkable appearance, this Skylark served as a canvas for the author’s automotive aspirations.

Discovering the GSX: A Turning Point

During the author’s search for automotive inspiration, a discovery in a magazine changed everything. The author stumbled upon the hopped-up version of the Buick Skylark, known as the GSX. With its vibrant colors, enhanced performance, and captivating design, the GSX became a beacon of excitement and aspiration.

Among the GSX lineup, one car stood out as the epitome of Buick’s engineering prowess and aesthetic appeal—the GSX Prototype. Crafted to awe and inspire, this show car graced the stages of the New York and Chicago Auto Shows in 1969 and 1970, drawing crowds with its striking presence.

The Interior: A Flashy Display of Luxury

Step inside the GSX Prototype and prepare to be dazzled by a visual feast for the senses. The interior of this legendary car is a true masterpiece, featuring high-back leather bucket seats that are not only incredibly comfortable but also adorned with mesmerizing multi-pattern checkerboard designs, accentuated by vibrant red-orange stripes.

Every detail has been carefully considered to create a captivating and luxurious atmosphere inside the cabin. But the allure doesn’t stop there—engine turn panels and special door panels add an extra touch of sophistication, elevating the interior aesthetics to unparalleled levels of elegance.

In summary, the interior of the GSX Prototype is a true testament to the impeccable craftsmanship and attention to detail that went into creating this iconic vehicle. It seamlessly combines comfort, style, and luxury, providing an immersive and unforgettable driving experience for anyone fortunate enough to step inside. Prepare to be amazed as you discover a world of automotive opulence within the confines of the 1970 Buick GSX Prototype.

Beyond the Exterior: Performance and Handling

The GSX Prototype is not just about looks—it delivers exhilarating performance too. Equipped with a 455 cubic-inch Stage 1 Buick V8 engine, producing 360 horsepower and 510 pound-feet of torque, this powerhouse offers an unforgettable driving experience. Its sports suspension, disc brakes, and rear gear ensure exceptional handling and control.

Since 1978, the GSX Prototype has been in the ownership of Brad Connelly. He lovingly restored the car in 1996, bringing it back to its former glory. Despite its show car pedigree, this GSX Prototype has seen the road, having covered over 80,000 miles—a testament to its drivability and enduring appeal.

In recent years, the GSX Prototype has made appearances at national Buick meets and automotive shows, captivating audiences young and old. Its enduring popularity serves as a reminder of the indelible impact this car has had on the automotive world.

The 10th anniversary Muscle Car and Corvette Nationals provided an extraordinary opportunity for enthusiasts to witness the GSX Prototype firsthand. Surrounded by admirers, this legendary vehicle continues to inspire new generations of muscle car enthusiasts. The event serves as a testament to the enduring legacy of the GSX Prototype.


The 1970 Buick GSX Prototype Show Car holds a special place in the heart of every muscle car aficionado. From its humble beginnings as a Buick Skylark to its transformation into a showstopper, the GSX Prototype represents the epitome of automotive excellence. Its striking design, powerful performance, and enduring appeal ensure that it remains an icon of the muscle car era.

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