2010 BMW ActiveHybrid X6
The basis for the BMW ActiveHybrid is GM?s TwoMode system with a seven-speed automatic transmission provided by the two electric motors together with three planetary gearsets and four multiple-plate clutches. You can view details on how 2-Mode works in the following: http://www.cleanmpg.com/forums/showthread.php?t=7448 The two-mode active transmission is based on an ECVT (electric continuously variable transmission) operating in two separate modes. One mode is for starting off with power for driving at low speeds. The second is for high speed driving.