6-speed manual transmission -inc: dual-mass fly-wheel & self-adjusting clutch
7-speed Porsche Doppelkupplung (PDK) automatic transmission -inc: double clutch w/manual steering wheel speedshift
8-speed Tiptronic automatic transmission
8-speed Steptronic automatic transmission
Specialized cooling system -inc: enlarged cooling system hose diameter, 1000-watt radiator fan, additional coolant radiator, indirect inter-cooler, additional engine oil cooler, external transmission oil cooler