Ringbrothers Unveils 'Billie,' the Ultimate Custom Pontiac GTO
Cars

Ringbrothers Unveils 'Billie,' the Ultimate Custom Pontiac GTO

authorBy Chris Harris
DateNov 03, 2026
Read Time5 min

Ringbrothers has once again pushed the boundaries of automotive customization with their latest creation, 'Billie,' a meticulously re-imagined 1965 Pontiac GTO. This project, which began as a humble Pontiac Tempest Convertible, underwent an extensive transformation spanning over 5,500 hours of dedicated craftsmanship. The result is a vehicle that not only pays homage to the iconic muscle car era but also integrates modern performance and design elements, creating a truly unique machine. Every detail, from the widened body to the bespoke interior and powerful drivetrain, reflects Ringbrothers' commitment to excellence and innovation, making 'Billie' a standout example of restomod artistry.

The reimagined GTO boasts a significantly altered exterior, now five inches wider than its original counterpart, achieved through expertly reshaped fenders, enhanced rear quarter panels, and extended rocker panels. Complementing these modifications are lightweight carbon-fiber doors and numerous custom-fabricated body panels, all meticulously designed to maintain the classic GTO silhouette while infusing a contemporary, aggressive stance. The interior has also been thoroughly revamped, featuring a dashboard repositioned for improved space, new aluminum accents, a state-of-the-art digital display, and a uniquely crafted shifter inspired by an espresso portafilter, blending classic aesthetics with modern functionality. Under the hood, 'Billie' is powered by a supercharged 6.2-liter LT4 V8 engine from Wegner Automotive, delivering an impressive 650 horsepower and 650 lb-ft of torque, managed by a Bowler 10-speed automatic transmission. This powertrain is complemented by a custom exhaust system featuring Flowmaster components, ensuring a powerful and distinctive auditory experience. The vehicle's performance is further enhanced by a Roadster Shop Fast Track Stage III chassis, FOX coilovers, and six-piston Brembo brakes, all riding on custom HRE G-Code wheels fitted with Michelin Pilot Sport Cup 2 tires, providing superior handling and grip.

A Transformed Exterior and Bespoke Interior

Ringbrothers embarked on an ambitious journey to redefine the classic 1965 Pontiac GTO, meticulously crafting a vehicle that marries iconic design with contemporary enhancements. The exterior of 'Billie' has been dramatically reimagined, starting with a five-inch body extension that lends it a more commanding presence. This wider stance is complemented by custom-fabricated front fenders, robust rear quarter panels, and elongated rocker panels, all designed to seamlessly integrate with the car's original lines. The use of carbon-fiber for the doors and various other custom panels not only contributes to weight reduction but also adds a modern, high-performance aesthetic. The entire vehicle is finished in a unique 'Billie Goat Blue' paint, accented with polished chrome and black elements, creating a striking visual contrast that accentuates its sculpted form. Custom bumpers, a billet aluminum taillight panel, and a carbon-fiber diffuser with integrated exhausts complete the exterior transformation, showcasing Ringbrothers' attention to detail and their ability to blend classic styling with aggressive, modern touches.

The interior of 'Billie' is just as thoughtfully redesigned as its exterior, offering a blend of nostalgic charm and cutting-edge technology. To enhance cabin space and ergonomics, the dashboard has been artfully repositioned, moving four inches forward and dropping two inches, creating a more open and comfortable environment for occupants. The cabin is adorned with new aluminum trim, adding a touch of modern sophistication, while a digital display provides contemporary instrumentation without detracting from the car's vintage appeal. Even the original radio has been meticulously reworked to incorporate modern Bluetooth connectivity, seamlessly integrating current technology into a classic interface. A truly unique detail is the custom shifter, whose design was inspired by an olive wood espresso portafilter. This unconventional choice highlights Ringbrothers' commitment to bespoke craftsmanship and adds a distinctive, handcrafted touch that resonates with the overall character of the vehicle. Every element within the interior has been carefully considered and executed, resulting in a cockpit that is both luxurious and functional, offering a truly unique driving experience.

Supercharged Performance and Advanced Underpinnings

At the heart of 'Billie' lies a powertrain that redefines muscle car performance, blending raw power with modern engineering. Ringbrothers opted for a supercharged 6.2-liter LT4 V8 engine, sourced from Wegner Automotive, known for its formidable output and reliability. This potent powerplant delivers an impressive 650 horsepower and an equal amount of torque, a significant leap from anything the original GTO could have offered. Such a substantial increase in power ensures exhilarating acceleration and a thrilling driving experience. To manage this immense power, the engine is paired with a Bowler 10-speed automatic transmission, offering smooth and precise gear changes that enhance both performance and drivability. Further enhancing the driving experience is a custom exhaust system, meticulously crafted by Ringbrothers with components from Flowmaster, designed to produce a deep, aggressive rumble that perfectly complements the car's formidable appearance and performance capabilities, making its presence known on the road.

Beyond its powerful engine, 'Billie' benefits from a thoroughly modern chassis and suspension setup, transforming its handling characteristics to match its increased power. The vehicle is built upon a Roadster Shop Fast Track Stage III chassis, renowned for its rigidity and performance capabilities, providing a solid foundation for dynamic driving. This advanced chassis is complemented by FOX coilovers, allowing for precise control over damping and ride height, ensuring optimal handling both on the street and at higher speeds. Stopping power is provided by a high-performance Brembo braking system featuring six-piston calipers, offering exceptional modulation and fade resistance, crucial for a vehicle of this caliber. The car rides on custom HRE G-Code wheels, with 19-inch wheels at the front and 20-inch wheels at the rear, wrapped in Michelin Pilot Sport Cup 2 tires. These high-performance tires provide superior grip and responsiveness, allowing 'Billie' to handle corners with remarkable agility and confidence, far surpassing the capabilities of a stock GTO. This comprehensive integration of modern performance components ensures that 'Billie' is not just a show car, but a formidable machine capable of delivering an exhilarating and precise driving experience.

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