At 124 mph (200 km/h), the standard Turbo GT with Weissach package generates 209 lbs (95 kg) of downforce. The Manthey Kit increases this to 638 lbs (290 kg). At top speed—now 192 mph (309 km/h)—the car creates 1,631 lbs (740 kg) of downforce to push it onto the road surface. It’s fitted with bigger friction brakes with high-performance pads, and the driving dynamics have been honed by a new setup that makes use of the active ride suspension and rear axle steering. In addition to the bodywork there’s an optimized powertrain with more power. Porsche Manthey has also worked some magic on the powertrain. Maximum current has increased by 30 percent to 1,300 A, which increases nominal power by 26 hp (20 kW) to 804 hp (600 kW). Attack mode, imported from Formula E (where Porsche has had quite a lot of success in recent seasons) boosts this to 978 hp (730 kW) for 10 seconds.…