British carmaker Aston Martin has launched 'Valhalla', the plug-in hybrid electric vehicle (PHEV). The car boasts of 4L twin turbo V8 engine; supported by a pair of 204_PS electric motor. Valhalla's speed is capped at 330kmph and it's capable of going from 0-100kmph in 2.5s! Just FYI - the IC engine is provided by Mercedes-Benz. Did that surprise you?