1997 Porsche 911 Carrera Speedster by Gunther Werks

This 1997 Porsche 911 Carrera is one of 25 examples modified by Gunther Werks to their Speedster specification in a build that was completed in 2024. The factory-delivered cabriolet was stripped of its convertible top, side windows, and windshield prior to receiving chassis reinforcements, a number of carbon-fiber body panels, a shortened windscreen, a Speedster-style tonneau cover, and a repaint in Cream White. Power is provided by a Rothsport Racing-built 4.0L flat-six with MoTeC engine management linked with a Getrag G50 six-speed manual transmission with custom ratios and a limited-slip differential. The car rides on staggered 18″ carbon-fiber and magnesium wheels and is further equipped with Brembo GTR brakes, JRZ electronic adaptive suspension, a front axle lift system, nickel-plated aluminum side mirrors and door handles, LED taillights, and a ducktail rear spoiler. Inside, the car was optioned with the Travel Package, which includes a multi-function carbon-fiber steering wheel and a single-piece carbon-fiber center console. The carbon-fiber bucket seats are upholstered in beige leather and Alcantara with houndstooth cloth inserts, and they are accompanied by carbon-fiber and satin black brushed trim, automatic climate control, and a Porsche Classic stereo. This Gunther Werks Speedster was acquired by the selling dealer in 2025 and is now offered in Indiana with a build sheet, a clean Carfax report, and a clean Montana title.

Based in Huntington Beach, California, Gunther Werks was founded by Peter Nam, CEO of carbon-fiber parts manufacturer Vorsteiner, and began customizing 993-series 911s in the spirit of the GT3 variant that appeared later in Porsche’s history. Each cabriolet is stripped to its steel unibody, which is outfitted with carbon-fiber body panels, including a revised hood, widened front and rear fenders, bumpers, and side skirts. An integrated roll cage and hoop are added to provide support for the Speedster-style tonneau cover, and the carbon-fiber shortened windscreen frame and cowl incorporate aluminum reinforcements.

This example is finished in Cream White, and the bodywork is wrapped in XPEL Ultimate Protection Self-Healing paint protective film. The carbon-fiber front splitter incorporates a skid plate, and a carbon-fiber ducktail spoiler with a ram air scoop is installed out back. Further exterior details include LED taillights, a honeycomb mesh grille insert, nickel-plated aluminum side mirrors and door handles, and twin exhaust tips exiting through the rear valance. The car is not equipped with a convertible top or side windows.

The Gunther Werks build included widening the front track and strengthening the chassis with rear bracing and stiffened sills. The car rides on dark gray-finished two-piece 18″ center-lock wheels with carbon-fiber rims, magnesium centers, and titanium fasteners. They are mounted with 295/30 front and 335/30 rear Continental ExtremeContact Sport tires. Stopping power is provided by body-color Brembo GTR six-piston front and four-piston rear calipers over two-piece slotted and ventilated rotors.

The carbon-fiber bucket seats, door caps, lower dash, and center console are trimmed in beige leather and Alcantara, while the seat inserts and dash panel are upholstered in houndstooth fabric. Exposed carbon fiber is present on the dashboard, single-piece center console, rear bulkhead, and door panels, and the car was optioned with five-piece carbon-fiber floor covers. Additional equipment includes a Porsche Classic radio, air conditioning, a milled aluminum shifter, satin black brushed trim, a slotted forged aluminum passenger’s footrest and pedals, tan door pulls and seatbelts, black leather floor mats with tan binding, and Lizard Skin insulation. The rear seats have been deleted.

The multi-function carbon-fiber steering wheel is trimmed in black Alcantara with a black leather centering stripe, and it frames a central Gunther Werks-branded 9k-rpm tachometer joined by VDO instrumentation including a 180-mph speedometer, a pair of combination gauges, and an analog clock. The six-digit odometer shows 311 miles since the completion of the build.

The front trunk is trimmed in exposed carbon-fiber and houndstooth cloth.

The air-cooled flat-six was built by Rothsport Racing to a displacement of 4.0 liters with Mahle pistons, billet cylinders, a billet crankshaft, and forged connecting rods. Coil-on-plug ignition and a two-stage MoTeC engine management system are installed, while induction is through individual throttle bodies on a custom intake plenum. Output was rated by Gunther Werks at 430 horsepower and 330 lb-ft of torque. The lightweight titanium exhaust system incorporates equal-length stainless steel headers and 3D-printed multi-layered Inconel outlets.

Power is sent to the rear wheels via a Getrag G50 six-speed manual transaxle with custom gear ratios and a limited-slip differential with carbon clutches. A midweight single-mass flywheel and a single-plate clutch were also added during the Gunther Werks build. Suspension comprises electronically-adaptive JRZ coilovers with remote reservoirs, custom control arms, uprated anti-roll bars, lightweight uprights, a front strut brace, and a hydraulic front lift system.

 

The build sheet lists the added equipment as well as a total price of $922,713.