Auctions and Brokerage
Shin Okamoto, Osaka, Japan (acquired new via Mizwa Motors Corporation in 1993)Jan Koum (acquired via Prescott Kelly)
In the early 1990s, Porsche executive Jürgen Barth proposed the company build an all-new 964-based racing car, one that would return the 911 to the highest levels of GT racing. Unveiled in 1993, the new Carrera RSR 3.8 was an instant success, capturing class wins at Le Mans, Sebring, and Daytona. The RSR also delivered outright victories in the 24-hour races at Spa-Francorchamps and Nürburgring. To homologate the 964 RSR, Porsche had to build a number of road-going models that shared the basic specifications of the race car. The result was the Carrera RS 3.8, which continued the tradition of the Rennsport models that came before.
A further development of the Carrera Cup and Carrera RS, the RS 3.8 was engineered for maximum performance and hand built in Porsche’s racing department at Weissach-Flacht. Along with specialized Porsche Motorsport suspension and braking components, the Carrera RS 3.8 featured a strengthened, seam-welded tub, with lightweight glass and aluminum panels contributing to a curb weight of just 1,210 kg (2,667 pounds). The businesslike interior was equipped with lightweight bucket seats and a three-spoke, non-air bag steering wheel, while niceties such as power steering and air-conditioning were available upon request.
Externally, the RS 3.8 retained much of the classic 911 form, even with the additions of wide fender flares and an exotic aerodynamic package that included a deeper front spoiler and an adjustable rear wing. Power came from a revised version of the 964’s air-cooled flat-six that had been bored by 2 mm (increasing displacement to 3.8 liters) and produced a reliable 300 bhp at 6,500 rpm. Wide Speedline wheels completed an appearance that was nearly as outrageous as the RSR racing car, but the RS was finished to the impeccable standards of a top-of-the-line Porsche road car. In total, Porsche built just 55 examples of the 964 Carrera RS 3.8. The car presented here, chassis 497078, was completed on December 14, 1993, and specified for delivery in Japan. After Germany, Japan was the most important market for these cars; all 12 examples delivered there were specified in left-hand drive and equipped with a smaller 77-liter fuel tank.
This particular RS 3.8 is one of 12 examples painted Speed Yellow (code X4) and one of just two ordered with bucket seats painted black, trimmed in black leatherette with contrasting tri-tone gray panels. Special equipment included a 40/40 locking differential, H4 headlights, and reduced radio preparation. Notably, this RS was specified without an ECE regulations sticker or identification plate.
As documented in the definitive book Porsche 964 Carrera RS 3.8, this car was sold new through Mizwa Motors of Tokyo and delivered to its first owner on September 7, 1993. The Porsche’s original purchaser was Shin Okamoto, a noted Japanese collector of important contemporary supercars, with a stable including a McLaren F1 and Ferrari F50 GT. The RS 3.8 remained in Japanese ownership until 2017, when marque specialist Prescott Kelly discovered it and brokered its sale to Jan Koum.
Today, the RS 3.8 remains in magnificent condition, retaining its original paint finish and upholstery. Carefully maintained and detailed since joining The Jan Koum Collection, the car makes a strong impression in all respects, and at the time of cataloguing, the odometer displayed just over 15,420 km (approximately 9,580 miles). Consistent with its highquality presentation, this car is offered with a tool roll, roadside accessories, and owner’s handbooks. It is also accompanied by a file of documentation that includes a Porsche Certificate of Authenticity, copy of the factory build record, and a German-language edition of Porsche 964 Carrera RS 3.8 bearing this car’s serial number (078).
One of only 55 examples built by Porsche’s racing department, the 964 Carrera RS 3.8 is among the most collectible and sought-after of the legendary Rennsport models. Very rarely do these Porsches trade hands. The appearance of this exceptional Speed Yellow example at public auction is an opportunity not to be missed.