As an alternative to this graphic display, the system is also able at the touch of a button to analyse the current level of effi ciency in per cent. (topspeed.com)
In the case of BMW ActiveHybrid 7 precise coordination of the electric motor and the V8 power unit serves to optimise the effi ciency of the combustion engine under all kinds of different loads and under many conditions. (topspeed.com)
The combustion engine, electric motor and eight - speed automatic transmission form one complete unit set out for maximum effi ciency in BMW ActiveHybrid 7. (topspeed.com)