Our team presents this 2025 Porsche 718 Cayman GT4 RS, offered as part of a limited Black Friday 12 hour sale event. Finished in Black over Black with Arctic Grey leather and Race Tex, and showing only 78 miles from new, this example features the Weissach Package, Porsche Ceramic Composite Brakes, satin black wheels, front axle lift, and a high specification interior. It remains unmodified, accident free, and is offered with a clean documented ownership path and build provenance.

The Porsche 718 Cayman GT4 RS (Rennsport) represents the most extreme track-focused specification of the mid-engine Cayman platform. It sits at the very top of Porsche performance within the 718 family as it packs the hair-raising naturally aspirated 4.0-liter flat-six engine from the 911 GT3. Capable of revving to 9,000 rpm with dry sump lubrication and a rigid valve train, this boxer unit produces 493 horsepower. 

 

The induction system routes process air through visible ducts positioned directly behind the driver’s shoulders inside the cabin, creating one of the most emotional intake sound experiences in any modern Porsche. Combined with the seven-speed PDK transmission that sends power exclusively to the rear wheels and revised suspension geometry, acceleration response and shift execution provide a continuous delivery of power suited for track performance while preserving drivability for street use. 60 mph comes up in 3.2 seconds, and top speed is 196 mph.

 

The GT4 RS features a lightweight race-bred chassis structure (~3,120 pounds) with extensive aerodynamic enhancements, including a swan-neck rear wing, NACA ducts in the hood that direct air to the braking system for additional cooling, a more aggressive air diffuser package, and composite panels for reduced mass. The result is a 25 percent increase in downforce compared to the standard GT4. The Weissach Package extends this further with exposed carbon fiber components and lightweight wheels that enhance rigidity and reduce unsprung mass, a titanium roll cage, and a titanium exhaust system. 

 

Inside, expanded use of race tex in the cabin, and fixed carbon bucket seats deliver precise lateral support. These elements align the GT4 RS with the performance philosophy of the GT3 models, but positioned within a shorter wheelbase and mid-engine layout.

 

This particular 2025 example is equipped with the highly desirable aforementioned Weissach package. Finished in Black with satin black wheels, it features additional options like Porsche Ceramic Composite Brakes (PCCB) increase thermal endurance, Porsche Dynamic Light System (PDLS), and a front axle lift system.

 

Presenting a stripped and purposeful environment suitable for track operation, this sporty cockpit features fixed carbon bucket seats trimmed in Black and Arctic Grey, illuminated carbon entry sills, premium Bose audio, and an extended deviated stitching with details in contrasting yellow, including on belts and pull loops.  

 

Delivered new to Porsche of Halifax and later titled in the United States in August of this year in the state of Arkansas, it remains as delivered with under 100 miles and no modifications or paint correction. It is presented in showroom condition.

 

Demand for Weissach-equipped GT4 RS configurations has remained high, and low-mileage examples like the one seen here have proven difficult to source as production allocations become more controlled and supply continues to tighten. Presented here under a time-limited 12-hour Black Friday opportunity on duPont REGISTRY Live, this example is positioned as a compelling acquisition for collectors either seeking long-term preservation or a nearly-new chassis ready for track action. 
 

Exterior

Interior

• 4.0L naturally aspirated flat six: 493 HP
• 7-speed dual clutch PDK transmission
• Rear wheel drive