Porsche Motorsport has introduced a new entry-level 911 closely related to the road-going GT3, expanding its ‘Sportwagenschmiede’ offering to four cars.

Effectively a replacement for the discontinued Cayman GT4 Clubsport, the Challenge has been engineered with a focus on running costs. Much is therefore shared with the production GT3, from its 4.0-litre naturally aspirated flat-six and seven-speed PDK transmission, to its bodywork and aero. The driver assistance systems carry over too, including ABS, traction control, stability control and adjustable Porsche Torque Vectoring Plus. Even the air conditioning remains in situ.

Most obvious among the competition upgrades are the new 18-inch alloys wrapped in racing slicks, down from the 20s and 21s. The switch dictates a smaller front disc, and the Challenge takes the 380mm steel setup from the 911 GT4 R. Elsewhere sit an FIA-spec rain light, bonnet pins and headlight crosses. Changes beneath the skin include motorsport-specific dampers, an integrated air jack and a three-position anti-roll bar, while the removal of the particulate filter and a new silencer liberate a further 5bhp and 15lb ft, taking output to 508bhp and 347lb ft.

Porsche 911 Challenge - front
Porsche 911 Challenge - side

The inside is where things truly escalate – 911 GT3 RS steering wheel aside. Out goes the infotainment and any form of sound deadening, in comes a welded roll cage and an adjustable racing bucket seat with a six-point harness. Further competition upgrades include a fire-extinguishing system and a 110-litre FT3 fuel tank.

With the addition of the Challenge, Porsche's entire customer GT lineup is now based upon the 911. The 911 GT4 R has taken over from the recently retired 718 Cayman GT4 RS Clubsport in the arena of international GT4 racing. Above that sits the 911 Cup, designed for Porsche's fastest one-make championships such as the Mobil 1 Supercup. Top of the tree sits the 911 GT3 R, recent winner of the 24 Hours of Spa-Francorchamps.

Porsche 911 Challenge - interior
Porsche 911 Challenge - front three quarter

Michael Dreiser, Head of Sales at Porsche Motorsport, said: ‘We are following a principle here that dates back to the 1960s: our customers receive a race-ready car complete with motorsport safety technology, data acquisition, spare parts support and technical documentation.’

Although closely related to the road car, the 911 Challenge is strictly track-only, so anyone looking to circumnavigate the GT3 waiting list need not apply. Porsche's new entry-level racer is available to order now, with its competition debut set for 2027. Order books will be staggered, with one-make entrants taking priority before the car is offered to the wider track day and driver-training market.

Porsche 911 Challenge - rear three-quarter tracking shot