Gunther Werks has unveiled the GXR-Evo during Monterey Car Week, following its 1,067-horsepower Porsche 911 restomod with a radically different approach. Rather than chasing four-figure horsepower, the company has focused on reducing weight and maximizing track performance.
The result is Gunther Werks’ fastest naturally aspirated car yet. Based on the Porsche 993, the GXR-Evo has a dry weight of just 2,386 pounds—210 pounds less than the brand’s Coupe. With fluids added, its curb weight is closer to 2,400 pounds.
The track-only special is limited to 15 examples and features airjacks, a fire suppression system and an H-pattern six-speed manual transmission. Buyers also receive access to a simulator rig designed to help them learn how to control the car.
Gunther Werks GXR-Evo Cuts Weight for Track Performance
The GXR-Evo eliminates many of the luxury elements found in Gunther Werks’ other restomods. There are no carpets or passenger seats, while the body is constructed from full carbon fiber using a 12k 2×2 weave.
Its aggressive aerodynamic package includes a large front splitter, canards and louvered fender vents designed to maximize downforce. At the rear, a high-downforce wing with intricate endplates works with a vertical dorsal fin to improve high-speed stability.
Like a Manthey-fettled Porsche 911 GT3 RS, the GXR-Evo replaces the rear windshield with a carbon-fiber panel. Carbon-fiber sections also occupy the areas where the side windows would normally be, while intake scoops help feed the air-cooled engine.
Despite its extreme track-focused design, the GXR-Evo retains a rearview camera to provide rear visibility.
A Naturally Aspirated 4.0-Liter Flat-Six Makes 455 HP
Power comes from a 4.0-liter flat-six co-developed with Rothsport Racing. The naturally aspirated engine produces 455 horsepower and has a redline near 9,000 rpm.
A special slide-valve throttle body replaces conventional butterfly valves to increase volumetric efficiency. Power is sent to the rear axle through a reengineered Getrag G50 six-speed manual transmission.
The GXR-Evo also uses Brembo Pista race brakes, motorsport-grade ABS and magnesium center-lock wheels. A bespoke double-wishbone suspension with three-way manually adjustable remote-reservoir dampers from JRZ is designed to keep the car composed through sweeping corners and over curbs.
GXR-Evo Interior Is Built for One Driver
The cabin is stripped down for circuit use, with a single Racetech carbon-Kevlar seat securing the driver with a Schroth six-point harness. The harness connects to an eight-point roll cage featuring detailed welds.
A new quick-release steering wheel sits ahead of the driver and mirrors the design used in the accompanying simulator. A Motec digital display provides access to telemetry and diagnostics.
Controls for launch control, wipers, display brightness and a helmet cooling system are integrated near the display. Gunther Werks has retained some of the original 993 character, including the center-console switchgear for the windows and mirrors below the air-conditioning controls.
A 15-Car Restomod for Serious Track Use
The Gunther Werks GXR-Evo is designed for enthusiasts who intend to use the car on a circuit rather than simply display it. Its combination of low weight, a naturally aspirated 4.0-liter engine, manual transmission and extensive motorsport hardware gives it a distinctly different character from higher-powered luxury restomods.
Only 15 examples will be produced. The price was not specified in the provided material, although the package includes a $50,000 simulator designed to help owners become familiar with the car before pushing its capabilities on track.
