The GWR

Representing a quantum leap forward in mechanical, aerodynamic, and naturally aspirated powertrain development

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Technical Specifications

transmission

Getrag g50

Max Power

500 HP

Engine

Quad cam twin valve flat-six 4.0L

power to Weight

4.8 ibs

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A bright blue Porsche sports car parked on a rural road with dry grass and bushes on the sides.
A bright blue Porsche sports car parked on the side of a road with a hazy sky and some shrubbery in the background.
A blue Porsche sports car parked on an empty road with trees and a cloudy sky in the background.

The Performance Revolution

The GWR is powered by the most advanced naturally aspirated engine ever developed by GW/Rothsport: the Quad Cam Twin Valve Flat-Six 4.0L. Capable of revving up to 9,000 rpm, this high-performance engine delivers over 500 horsepower and 340lb-ft of torque, all within a vehicle weighing just 2,400 pounds. Its lightweight carbon fiber body contributes to an exceptional power-to-weight ratio of 4.8 lbs per horsepower.

 

This represents a remarkable 25% improvement in power-to-weight ratio compared to the original Porsche® air-cooled 993, as reimagined by Gunther Werks.

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Transmission

Getrag G50

The original Getrag G50 transmission is retained but has been fully re-engineered with custom gear ratios, providing an optimal balance of performance, refinement, and touring capability. The shift linkage has been upgraded for improved precision, and the transmission is paired with a single-mass mid-weight flywheel and an enhanced single-plate clutch for superior engagement. Additionally, a new lower-ratio limited-slip differential featuring carbon clutches has been integrated to maximize traction and handling.

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Engine

In collaboration with Rothsport, Gunther Werks developed their groundbreaking 4.0-liter naturally aspirated flat-six engine that redefines performance. Featuring a quad-cam, twin-valve design, this engine revs to an incredible 9000rpm, delivering over 500 horsepower and 340 lb-ft of torque. Weighing just 2400 lbs, it boasts a power-to-weight ratio of 4.8 lbs per horsepower, ensuring exceptional acceleration and responsiveness. Key features include a cutting-edge Slide Valve Throttle Body System, a new intake manifold, and lightweight titanium components in the valvetrain. The engine is the pinnacle of precision and power, setting a new standard in naturally aspirated performance.

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A high-performance car engine on display, featuring a turbocharger, white intake manifold, sensors, and exhaust system.
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Features

Overview

The updated body panel design enhances the GWR’s aerodynamics, delivering superior performance. The newly integrated S ducting on the hood generates high-pressure downforce over the front axles, boosting traction and precision handling. The re-engineered front bumper features a built-in wicker, fender extraction louvers, and aero vents that channel air away from the tires, minimizing front-end lift caused by tire rotation. At the rear, the open-air bumper, vented ducktail spoiler, and additional taillight vents work together to efficiently expel engine heat, improving overall efficiency.

Turbofan Wheels

Turbofan Wheels, The flat surface of the wheel face greatly reduces aerodynamic drag and helps deliver a clean aerodynamic wake. The Aero Fins that sit vertically along the wheel face are designed to increase airflow and cooling over the brakes.

Lighting

A fully bespoke headlight system has been engineered at the front, incorporating the latest advancements in LED technology. The lighting assembly is constructed using a combination of lightweight, forged T-6061 aluminum components and carbon fiber to support the larger Bi-LED projectors and active daytime running lights. The entire unit is encased in hand-polished, aerospace-grade glass housing, meticulously designed to integrate modern functionality while preserving the original design aesthetics.

A blue Porsche sports car with black racing wheels parked on a rural road under an overcast sky.
A blue Porsche 911 sports car parked on a cracked asphalt road with a fence and shrubbery in the background.
Front view of a blue Porsche sports car parked on an empty rural road with dry grass on the sides.
A blue Porsche sports car parked on the side of a road with a natural landscape including trees and rocks in the background.
A blue Porsche sports car parked on a gravel surface with a barbed wire fence and trees in the background under a foggy sky.
Close-up of a sleek blue futuristic car headlight with a white LED strip and carbon fiber accents.
Close-up of a car's dual exhaust pipes with black tips, set against a black bumper on a paved road.
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Interior of a race car showing black dashboard, steering wheel, racing seat, gear shifter, and pedals in a blue-car interior.
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Close-up of a car's interior focusing on the shift knob, which is a black gear stick with a spherical top, and surrounding features including a carbon fiber trim, a handbrake, and parts of the dashboard.
Close-up of a blue sports car's rear with the engine shown through an open trunk lid. The engine is a modern, compact turbocharged flat-six with a white cover and black accents.