Gunther Werks' new GXR-Evo is basically a race car with a license plate, and only 15 exist
Gunther Werks built a 455hp, 1,082kg 911 that's barely still street legal.
Gunther Werks unveiled the GXR-Evo during Monterey Car Week, a 993-generation Porsche 911 stripped down and rebuilt as what the company calls the most extreme and fastest naturally aspirated car in its history. Just 15 examples will be built, each starting at $1,350,000.
A 993 stripped down and rebuilt for lap times
Every body panel is replaced with 12k 2x2-weave carbon fibre, including the aero addenda, front fender vents and even the quarter windows. The result is a dry weight of 1,082kg, 95kg lighter than a standard car. Underneath, Gunther Werks fitted a double-wishbone front suspension, JRZ three-way adjustable remote-reservoir dampers all round, race-spec Brembo Pista brakes and magnesium centre-lock wheels.
The naturally aspirated flat-six doing the work
Power comes from a 4.0-litre naturally aspirated flat-six co-developed with Rothsport Racing, producing 455hp and revving to nearly 9,000rpm. It uses a slide-valve throttle-body system in place of conventional throttle butterflies, aimed at sharper throttle response and better volumetric efficiency, paired with a straight-pipe exhaust. Drive goes to the rear wheels through a reworked Getrag G50 six-speed manual gearbox.
Aero that borrows heavily from Manthey Racing's playbook
The GXR-Evo's aggressive front splitter, canards, front arch louvres and gaping front intakes are aimed squarely at front-end downforce, while a rear wing with intricate endplates, a monster diffuser and rear wheel covers handle the back. An integrated centre shark fin replaces the rear glass entirely, giving the car what amounts to a baby-LMP silhouette.
An interior built for a helmet, not a commute
Inside, Gunther Werks fitted a carbon-Kevlar racing seat with a six-point Schroth harness inside an eight-point roll cage, a Motec digital display, a quick-release steering wheel, a digital rearview mirror, an OMP fire-suppression system and a driver helmet-cooling system. Integrated air jacks are also standard, letting the car be lifted at the press of a button rather than with a jack.
15 cars, a seven-figure price, and a matching sim rig
Each of the 15 GXR-Evo buyers also receives a bespoke MYSIM sim-racing rig built to match their car, down to a matching steering wheel, a meaningful add-on given a top-shelf MYSIM rig alone starts north of $60,000. Gunther Werks positions the GXR-Evo as the analogue, naturally aspirated counterpart to its turbocharged, 1,000hp Project F-26.
AutoNext Take
Calling this “street legal” is technically true and practically beside the point. A car riding on slick tyres with a straight-pipe exhaust and an eight-point roll cage is not something you drive to the shops, it is something you trailer to a track day and then drive very fast for twenty minutes at a time.
That is not really a criticism, it is the whole appeal. Gunther Werks is not competing with road-going GT3 RS variants here, or even with Porsche's own Nürburgring-focused GT3; it is building a car for people who already own one of those and want something with even less compromise. The sim rig is the tell: this is a car designed around lap times first and everything else, including the number plate, second.
