Porsche cars race in two classifications under the SRO Motorsports Group America governance: GT4 America and GT World Challenge America.
2020 GT World Challenge America
The 2020 GT World Challenge America championship features the world’s best GT3-spec machines in double-header weekends at six of North America’s greatest road courses: the Circuit of the Americas, Canadian Tire Motorsport Park, VIRginia International Raceway, Sonoma Raceway, Road America and Watkins Glen International. The 12, 90-minute, two-driver events with Pro-Am, Am and Silver classes lead to a 13th and final round at the famed Indianapolis Motor Speedway in October.
Porsche 911 GT3 R
The Porsche 911 GT3 R is the pinnacle competition machine for customer GT3 racing. The rear-engine car was introduced in 2019. Under SRO-specifications, the 4.0-liter, flat-six engine machine produces approximately 500-horsepower. As in the Porsche 911 GT3 RS road-going model on which it is based, the driver changes gears via shift paddles conveniently positioned on the steering wheel. Typical of the 911, the weight distribution ensures excellent traction and braking performances.
2020 GT4 America Sprint and SprintX
The SRO GT4 America championship is made-up of two individual series: Sprint and SprintX. While each series shares the same GT4-spec homologated machinery, each competes in different races and for separate championships.
The Sprint Championship is an eight-weekend, 16-round, single-driver format with races lasting 50-minutes. Classes are broken into two: Pro and Am (amateur) for drivers of various experience levels. The teams travel to the Circuit of the Americas, St. Petersburg, Florida, Canadian Tire Motorsports Park, VIRginia International Raceway, Sonoma Raceway, Road America, Watkins Glen International and the Indianapolis Motor Speedway.
The SprintX Championship also enjoys an eight-weekend, 16-round calendar for its two-driver format with races lasting 60-minutes. Three classes compete for category and overall victory: Silver, Pro-Am and Am. The champion will be decided on tracks across North America including the Circuit of the Americas, Long Beach, California, Lime Rock Park, VIRginia International Raceway, Sonoma Raceway, Road America, Watkins Glen International and the world-famous Indianapolis Motor Speedway.
Porsche 718 Cayman GT4 Clubsport
The 718 Cayman GT4 Clubsport represents pure motorsport. The recipe is well known and proven: lightweight, well-balanced performance. The 385 horsepower mid-engine entry level racer features a modified six-speed Porsche double clutch PDK transmission with shift paddles on the steering wheel and a mechanical rear-axle locking differential and weighs in at just 2,866 pounds.