The GT2's engine was based on the flat-6 engine as seen on the Turbo, but featured two variable geometry turbochargers. The engine generated a maximum power output of at 6,500 rpm and of torque at 2,200 rpm. The GT2 accelerated from 0 to 100 km/h (62 mph) in 3.6 seconds and on to 200 km/h (124 mph) in 10.6 seconds, and had a maximum top speed of . This made it the third Porsche production road car to exceed the barrier, with the exception of the 1998 911 GT1 (of which only 20 units were produced for street use, solely to satisfy ACO homologation requirements for racing).