"Taking your breath away but not your speed, the M DCT Drivelogic double-clutch transmission transfers engine power to the road without the slightest disruption to tractive force. With two transmission structures the system is able to switch simply between the two, thus providing constant power to the rear wheels. Gears can be changed without the transmission of power being interrupted using either the paddles, shift lever or automatic mode for even more dynamic comfort. 0 to 100 km/h takes just 5.1 seconds, two tenths of a second faster than the manual transmission."

http://www.youtube.com/watch?v=YmaAxzTqh8g