Provided as standard, Porsche Traction Management (PTM) is an active all-wheel drive system with an electronically variable map-controlled multi-plate clutch. It distributes drive power between the permanently driven rear axle and the front axle.*Combined fuel consumption in accordance with EU 6: 911 Turbo models: 9.3-9.1 l/100 km; CO2 emissions: 216-212 g/km