If the 911 has the GT3 as top versions, the Cayman can count on the GT4, an authentic sports car that makes the power-to-weight ratio one of its best weapons. Its 4-liter 6-cylinder engine derives from the 3-liter 911 and develops 420 horsepower, for a total weight of 1420 kg. The Cayman GT4 is available in various configurations and is a great base for racing.