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Up to a speed of 60 km/h (37 mph), the BMW ActiveHybrid 5 can operate in all-electric mode for zero emissions in town. The lithium-ion high-voltage battery can store sufficient energy to give an all-electric driving range of up to four kilometres (approx. 2.5 miles) at an average speed of 35 km/h (22 mph).
The internal combustion engine is only started when the driver requires more power: it is then engaged automatically. The electric motor provides a "boost" function to supplement the engine when accelerating. Maximum combined power is 250 kW/340 hp, with maximum torque of 450 Newton metres. Under combined ICE/electric power, the BMW ActiveHybrid 5 delivers a 0 to
100 km/h (62 mph) acceleration time of 5.9 seconds.
The BMW ActiveHybrid 5 will launch in the spring of 2012.
