The Porsche Cayman GT4 was introduced for the 2016 model year (late 2015 in Europe), based on the then current generation of the Cayman (981C), using a revised and a slightly de-tuned version of the 3.8-litre flat-six engine from the 911 (991) Carrera S. The GT4 was available only with a 6 speed manual transmission and weighed 1,340 kg (2,954 lb). Compared to the standard Cayman, it features a 30mm lower ride height, upgraded brakes from the 991 GT3, a limited slip differential combined with Porsche Torque Vectoring, and Porsche Active Suspension Management with dampers derived from the 991 GT3. A number of reinforcements were also made throughout the chassis to keep it stiff and well balanced.