Porsche plans to return to rally racing with a 718 Cayman GT4 Clubsport R-GT Rallye. The car came about because of the positive response Porsche received on a rally car concept that it sent out into the world. Before the official car comes, Porsche did some testing with its 718 Cayman GT4 Clubsport-based concept race car. The company let racing legend Walter Röhrl get behind the wheel at the GP Ice Race in Austria.