The restomod world has become increasingly crowded with high-end Porsche builds, but every now and then a company releases something that genuinely stands apart. Theon Design’s latest 964-generation Porsche 911 commission does exactly that, blending air-cooled character with modern engineering in a package that somehow makes a current 911 GT3 look overweight.
Built by the Oxfordshire-based specialist for a private customer, the newest Theon creation pairs a naturally aspirated 4.0-liter flat-six with a six-speed manual transmission and a full carbon-fiber body. The result is a car weighing just 2,526 pounds while producing 421 horsepower, giving it a power-to-weight ratio that reportedly surpasses Porsche’s current 992.2-generation GT3.
That balance is what makes this build so appealing. Instead of chasing absurd horsepower numbers or turning the classic 911 into an unmanageable monster, Theon focused on preserving the feel and personality of the air-cooled era while quietly elevating nearly every aspect of the driving experience.
Naturally, exclusivity comes at a price. Theon says commissions like this start at roughly £430,000, or about $577,000 before taxes, shipping, and the donor car itself. Considering a clean Porsche 964 can easily cost six figures on its own, buyers are realistically approaching $700,000 before the project is complete.
Carbon Fiber And Lightweight Engineering Transform The 964
At the heart of the build sits a naturally aspirated 4.0-liter air-cooled flat-six producing 421 horsepower and 324 lb-ft of torque. Power is sent exclusively to the rear wheels through a six-speed manual gearbox, preserving the analog driving experience enthusiasts expect from a classic 911.
While the output figure itself is impressive, the real story is weight reduction. Theon extensively reworked the 964 using lightweight carbon-fiber body panels, helping slash curb weight to just 2,526 pounds.
Interestingly, the company intentionally retains steel doors rather than replacing every panel with carbon fiber. According to Theon, keeping the steel doors preserves the familiar tactility and feel of an original 911 while still allowing the rest of the car to benefit from aggressive lightweight engineering.
Performance is further enhanced through TracTive semi-active suspension with five selectable settings. Drivers can tailor the car’s ride and handling characteristics from comfortable road cruising to full track-focused aggression depending on mood and driving conditions.
The build also includes a front-axle lift system, making the low-slung Porsche easier to live with in daily driving situations. That usability remains a major part of Theon’s philosophy, even on cars with supercar-level performance.
A Restomod Designed Around Driver Engagement
Theon clearly understands that numbers alone do not define a great Porsche. The company spent significant effort refining the overall driving experience rather than simply chasing dyno figures.
A MoTeC ECU and power distribution module manage the drivetrain, while multiple drive modes alter throttle response, suspension behavior, and steering feel. Drivers can choose between calmer settings like Town mode or more aggressive calibrations designed for spirited driving.
There is also a “Raucus” mode that unlocks the car’s loudest personality. Selecting it deploys the rear spoiler, sharpens responses, and opens the exhaust system for a far more aggressive soundtrack complete with pops and crackles.
Theon says every build is calibrated specifically to the customer commissioning the car. Suspension tuning, steering feel, and throttle mapping are all tailored around the owner’s preferences rather than relying on generic factory presets.
That level of personalization helps explain why each project requires roughly 6,000 hours of development and assembly. The company plans to deliver only six customer cars worldwide during 2026.
Classic Porsche Design Meets Subtle Modern Luxury
Visually, the latest commission strikes a careful balance between classic restraint and contemporary detailing. The carbon body wears a Crayon Grey finish accented by Lizard Green details, including the brake calipers and contrast stitching throughout the cabin.
Smoked lighting elements, brushed Eclipse trim, and a Turbonite Porsche crest modernize the 964’s appearance without overwhelming its original shape. The 17-inch wheels finished in Anthracite and Black complete the understated look.
Inside, the cabin combines traditional Porsche simplicity with discreet modern upgrades. Recaro Sportster seats trimmed in black leather and green stitching dominate the interior, while carbon-fiber panels, machined aluminum accents, and bespoke gauges add a handcrafted feel.
Theon also integrated modern conveniences carefully rather than cluttering the dashboard with giant screens. Wireless phone charging, upgraded Focal speakers, and a Hertz amplifier hide behind a period-correct Becker Mexico head unit, preserving the analog atmosphere.
Unlike some modern restomods that become overloaded with technology and visual excess, Theon’s latest 964 still feels unmistakably like a classic Porsche 911, just sharper, lighter, and dramatically faster than Stuttgart ever imagined three decades ago.