2023 Porsche GT3 Cup

This 2023 Porsche 911 GT3 Cup features aluminum-steel composite bodywork finished in white with orange and gray vinyl graphics, and power comes from a 4.0-liter flat-six paired with a six-speed sequential transaxle. Equipment includes Brembo disc brakes, 18” center-lock wheels, a carbon fiber decklid and doors, a swan-neck rear wing, polycarbonate windows, and air jack system, as well as a roll cage with door bars, a fire suppression system, a Sabelt fixed-back bucket seat, Schroth harnesses, and a Cool Boxx system. The car was acquired by the seller in November 2024 and was driven for a test day at Buttonwillow before the transaxle was repaired earlier this year. This 992 GT3 Cup is now offered in Irvine, California with a bill of sale.

The GT3 Cup features aluminum-steel composite bodywork with fender extensions, a removable roof section, polycarbonate windows, a ventilated hood, LED headlights and taillights, and a carbon fiber swan-neck rear wing, decklid, and doors. This example is finished in white with orange and gray vinyl graphics and is equipped with an integrated rear rain light, tow straps, a rear diffuser, and a front lip spoiler. Damage to the front bumper cover can be seen in the gallery below.

Gray 18″ center-lock wheels are mounted with racing slicks. The brakes feature Brembo calipers, slotted rotors, two independent circuits, and a driver-adjustable brake balance system. The car rides on adjustable double wishbone front and multi-link rear suspension with double-blade anti-roll bars and is equipped with an air jack system. Blemishes are visible on the wheels and center caps.

The cabin houses a single fixed-back Sabelt carbon fiber-shelled bucket seat with head restraints and a Schroth Racing six-point harness. Equipment includes a welded padded roll cage with door bars, carbon fiber door panels with pull straps, a window net, a fire suppression system, and a Cool Boxx system.

A multifunction carbon fiber-reinforced plastic steering wheel with a quick release and illuminated push buttons sits ahead of paddle shifters and a Porsche-branded digital touchscreen display with integrated shift lights. The display indicates 12k kilometers (~7,500 miles) and approximately 80 hours of run time.

The 4.0-liter flat-six is equipped with dry-sump lubrication with an oil-water heat exchanger and a race exhaust system for a factory-rated output of 502 horsepower and 347 lb-ft of torque. Power is sent to the rear wheels via a six-speed sequential transaxle and a mechanical limited-slip differential. The transaxle was rebuilt in April 2024 by Porsche Motorsport North America and was repaired in July 2025, at which time the fourth, fifth, and sixth gear indexing wheels and collars were replaced along with the oil pump, oil cooler, Z-selector forks, and Z roller. The E-shift actuator was also rebuilt by Mega-Line Racing.