Plug-in hybrid electric vehicle

The invention relates to a plug-in hybrid electric vehicle with a propulsion system comprising an internal combustion engine driving a pair of wheels on a first axle and a transmission drivingly connecting the internal combustion engine and the wheels on a first axle. An integrated starter-generator (114; 214; 314) is mounted on the internal combustion engine crankshaft between said internal combustion engine and the transmission. The vehicle further comprises at least one electric motor driving a pair of wheels on a first axle and a main battery pack (132; 232; 332) connected to the at least one electric motor and arranged to supply electric power for driving the wheels on a second axle. The electric drive means can comprise one electric motor driving the second axle via a differential, two electric motors each driving one half of the second axle or two electric wheel motors for the respective wheels on the second axle. An additional battery (150; 250; 350) is connected to the integrated starter-generator for starting the engine.