BMW unveils production i8 plug-in hybrid; 94 mpg; on sale in US in 2014 priced from $135,925
Green Car Congress
SEPTEMBER 10, 2013
As well as providing a power boost to assist the gasoline engine during acceleration, the electric motor can also power the vehicle by itself. lithium-ion battery powering the motor is centrally mounted underneath the floor of the vehicle. These methods have been in use successfully in BMW workshops since 2003.
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