The next generation Porsche 911 RSR has been sighted stateside, testing at Sebring International Raceway. The new car is expected to make its IMSA WeahterTech SportsCar Championship and FIA World Endurance Championship debuts next year in the GT Le Mans and GTE-Pro classes, respectively.
From the video that has been published by fansofthe12hours, the new car will carry on the RSR namesake and features a number of new additions. Earlier this year Porsche revealed the face of the new 911 competitor, but fans and media have been much more interested in the mysterious rear third of the car, rumored to house a waiver-approve mid-mounted power plant.
The pictures left portray the differences between the current spec 911 RSR and the test vehicle used at Sebring. Two of the most notable differences in design include the addition of a large rear diffuser, which most current-spec GTE and GTLM cars feature, and the swan neck-mounted rear spoiler. Larger vents attached to the leading edge of the rear quarter-panels and re-designed side mirrors are are also noticeable. The quarter panels on the new car seem to be more pronounced, but the difference could be caused by lighting.
Besides the larger rear diffuser, a dual exhaust system can be seen at the rear of the car. Much more ventilation has been engineered into the rear window above a much more simplified rear fascia above the additive aero work.
Though this year’s model scored two wins and six podium spots in the WeatherTech Championship, Porsche elected not to run GTE-Pro entries in the WEC. New for 2016 aero rules allowed for much more development than previous years, tempting most manufacturers to add more aggressive front splitters and rear diffusers. The 911 RSR’s rear-mounted engine, however, limited Porsche’s options for the rear of the car.
Before the end of 2016, IMSA has two more official tests scheduled at Daytona International Speedway. November 14 through 16 will see the entire WeatherTech Championship field test while the December 13 and 14 date will field only Prototype, GTLM, and GT Daytona.
Be sure to check out fansofthe12hours, who has also shown testing footage of the new GTD Lexus RCF GT3 at Sebring as well.