The luxury engineering house behind more than 300 custom Land Rover Defenders applies its performance engineering and bespoke craftsmanship to the classic 1968–1971 Mercedes-Benz 280 SL.
Thirty years ago, on one of their first dates, Paul Potratz asked his future wife, Christy, what her dream car would be. She answered without hesitating: a Mercedes-Benz 280 SL. This year, for her birthday, he built her one.
Helderburg, the design and engineering house Potratz founded in 2019, has officially opened commissions for its limited-series Mercedes-Benz 280 SL Pagoda. Having built its reputation on perfecting the Land Rover Defender, Helderburg is now bringing that same engineering discipline, color development, and mechanical refinement to the 280 SL. Each commission begins with an authentic, numbers-matching car, fully restored to showroom condition and re-engineered in Germany for modern highway speeds. Pricing starts at $355,000.
“Over the years, I looked at Pagodas and talked to builder after builder, but I could never commit to how the cars were being built,” said Potratz. “So I built one the Helderburg way, using a numbers-matching 280 SL from the year Christy was born. When a friend saw it, he asked me to build one for him and his wife. That is exactly how our Defender builds started.”
The expansion into classic Mercedes-Benz motorcars marks an evolution of Helderburg’s engineering philosophy, while its bespoke Defender program continues unchanged.
Mercedes-Benz built only 23,885 280 SLs between December 1967 and February 1971, with more than half delivered to the United States.
“That is not many cars for the entire world,” Potratz noted. “For decades, they were treated as everyday used cars. Many were driven hard, parked outside, and left to rust. Because a proper restoration often cost more than the car was worth, many were never saved. Honest, numbers-matching cars get harder to find every year, and I believe the 280 SL will only become more desirable.”
Every Helderburg 280 SL retains its factory 2.8-liter inline-six, verified against the original Mercedes-Benz data card and rebuilt across three available performance tiers. The flagship specification produces up to 248 horsepower (a substantial upgrade from the factory 168 hp) breathing through a custom Helderburg Sport exhaust tuned specifically to eliminate cabin drone.
Restoration begins with First Light, Helderburg’s bare-metal immersion process. Each shell is completely stripped, inspected, and reinforced before undergoing a cathodic dip coating (KTL e-coat), a process that draws protective primer deep into closed frame sections spray guns cannot reach. Every vehicle is then finished with a 12-stage paint process, applied to both sides of every panel. True to Helderburg tradition, each color is mixed by eye, applied to a single commission, and permanently retired.
Underneath, the chassis is upgraded with proprietary Helderburg suspension, the Aegis braking system, custom alloy wheels, and modernized power-assisted steering. Inside, the cabin is trimmed in hand-colored Scottish, Scandinavian, or Italian leather, stitched to the owner’s exact specification. Modern conveniences are seamlessly integrated: high-efficiency air conditioning is hidden behind the original dash architecture, alongside a discreet Pinnacle audio system featuring Apple CarPlay and Android Auto.
“A Helderburg 280 SL should be as easy to drive to dinner in town as it is to push hard on a winding road,” Potratz said. “These cars were designed around the autobahn, and we wanted owners to feel what that means on their own roads.”
Each vehicle includes the seven-year Helderburg Worldwide Concierge program with unlimited miles, providing on-site technician service anywhere an owner resides.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
