Listed for sale on Bring a Trailer, this 2025 Porsche 911 GT3 RS represents an especially track-focused specification, combining the factory Weissach Package with a subsequent Manthey Racing performance kit. Twenty years after the introduction of the first GT3 RS, the 992-generation model continues Porsche’s uncompromising approach to extracting maximum circuit performance from a road-legal 911.
At its core is Porsche’s naturally aspirated 4.0-liter flat-six, producing 518 horsepower and 342 lb-ft of torque. Featuring VarioCam variable valve timing, forged titanium connecting rods, forged aluminum pistons, individual throttle bodies, and a variable intake manifold, the engine revs to 9,000 rpm and sends its output to the rear wheels through a seven-speed PDK dual-clutch transmission and Porsche Torque Vectoring Plus electronically controlled limited-slip differential.
The Weissach Package reduces mass through extensive use of carbon-fiber-reinforced plastic, including the roof, front trunk lid, anti-roll bars, coupling rods, and interior trim. The car also features lightweight magnesium 20-inch front and 21-inch rear center-lock wheels, carbon-fiber rear aerodiscs, and Porsche Ceramic Composite Brakes. Rear-axle steering, PASM Sport Suspension, a front-axle lift system, and an extended-range 23.7-gallon fuel tank further expand its capabilities.
A Manthey Racing performance kit subsequently transformed the aerodynamic and suspension package. Revised front splitter flaps, wheel-arch gurneys, roof blades, rear diffuser, underbody air guides, carbon-fiber wing components, a shark fin, and rear-window insert work alongside adjustable semi-active coilovers and braided stainless-steel brake lines. The result is a GT3 RS configured with an even stronger emphasis on aerodynamic efficiency and circuit consistency.
Finished in Black over a black leather and Race-Tex interior, the car features heated 18-way adaptive sport seats, carbon-fiber trim, silver stitching, Porsche Communication Management, dual-zone climate control, and a suede-wrapped steering wheel with a yellow center stripe. LED-Matrix headlights, a lightweight sport exhaust with twin center outlets, and a chronograph complete the specification.
According to the listing, the car was previously used as a manufacturer marketing and track vehicle before being acquired by the selling dealer in 2026, adding a distinctive element to its provenance.
Source: Bring a Trailer
