Porsche GT4 Clubsport and Clubsport MR: Two Race Cars Derived from the Porsche Cayman Coupe Published on September 28, 2016 in First Drives by Gabriel Gélinas Photo: Gabriel Gélinas Porsche GT4 Clubsport et MR - The Lausitzring EuroSpeedway course: the road circuit used for the test is outlined in red.