Driving the limited-run model is a 4.0-liter naturally aspirated flat-six with 455 hp. Power is sent to the rear wheels courtesy of a six-speed Getrag manual transmission. The lightweight carbon fiber construction means the car weighs just 2,386 lbs dry. Last year, Gunther Werks unveiled its bonkers Project F-26 at Monterey Car Week, fitted with a twin-turbo air-cooled engine with 1,000 hp. For 2026, the company has once again returned to Monterey with a new model, although this one doesn’t set out to achieve hypercar-levels of performance; rather, it’s focused on providing the most analog driving experience. Named the GXR-Evo, production will be capped at just 15 units globally and is the fastest naturally aspirated machine Gunther Werks has put together. Behind the cabin sits a 4.0-liter flat-six co-developed with Rothsport Racing, making 455 hp and spinning to nearly 9,000 rpm before it runs out of steam. Read: The Last Gunther Werks Speedster Is Air-Cooled, 840 HP, And Looks Like Iron Man’s Personal Porsche Although the 4.0-liter flat-six you’ll find in a new 911 GT3 and GT3 RS has more power, the GXR-Evo is significantly lighter than either one. In fact, thanks to a full carbon fiber body, it has a dry weight of just 2,386 lbs (1,082 kg). There’s no word on the wet weight, but it probably won’t be much more than 2,500 lbs (1,133 lbs). Working alongside the twin-valve engine is a re-engineered Getrag G50 six-speed manual transmission that directs power through the rear wheels. Performance times haven’t been quoted, but a car like this isn’t about straight-line acceleration, and is instead all about driving thrills, whether that’s speeding up Mulholland Drive or cruising down the Pacific Coast Highway. The GXR-Evo’s design is among the most striking that Gunther Werks has ever created. The front end includes a gaping-wide grille with a large splitter, canards, and vents on the enders, all working together to relieve pressure and boost front-end downforce. At the rear, things are arguably even more extreme with a towering fixed wing and a shark fin sitting in place of the rear window. Carbon Fiber Everywhere To save as much weight as possible, the interior has been stripped out. It includes Racetech carbon-kevlar racing seats with six-point Schroth harnesses and an eight-point roll cage. It also includes a configurable Motec digital display, a digital rearview mirror, a fire-suppression system, and even a driver helmet cooling system. Pricing details for the 993-based model haven’t been announced, but Gunther Werks says each owner will receive a custom MYSIM racing simulator made of aluminum and carbon fiber, while also using the same steering wheel as the GXR-Evo.
