Previous prototypes were seen sporting an oversized bulge on the bonnet, most likely to accommodate the new hybrid hardware. The latest prototype looks much more like the standard X6, although a small bump remains.
The new hybrid will feature BMW’s version of the modular two-mode hybrid system jointly developed with Daimler and General Motors and is expected to improve fuel efficiency by about 20% when compared to the xDrive50i V8 model.
The design uses twin electric motors which can either be used to boost acceleration, charge the batteries or as a generator to mutually power each other. The two-mode active transmission is based on an ECVT electrical continuously variable transmission. The two operating modes, one of which has been optimised for low, the other for high speeds, are supplemented by fixed transmission ratios.
BMW’s new-generation 7-series flagship is expected to debut the new hybrid system late next year or in early 2010, and then it will filter across to more models such as the X6. A concept version of the 7-series hybrid was revealed earlier this year, revealing that BMW's hybrid system will initially match a 4.4L V8 engine to the electric drive system. The petrol-electric X6 will likely feature the same powertrain when it hits the streets in 2010.

Reader Comments
Fri Jul 4 2008 6:41 AM
Dann says
10-15mpg / 5 = 2/3
the improvement of the hybrid is 2-3mpg - that's shockingly un worth it for what they will ask you to pay.
Sat Jul 19 2008 3:51 AM
Bot says
STOP using ST rims!Everyone now use them!
Mon Nov 10 2008 4:41 PM
NoNameDenton says
Think I would rather have a diesel, the hybrid's milage would not be worth it compared to the diesel
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