Under the skin the MPV5 is powered by the same Voltec powertrain as the original Volt, with an electric motor powering the front wheels. The electric motor is fed by a battery pack recharged via mains power. When battery power approaches zero, a supplementary petrol engine powers up to recharge the batteries and keep the car rolling.
The MPV5's zero tailpipe emissions EV range has been reduced to around 50km, down from the Volt sedan's 60km-plus range. This is likely due to the increased weight and aerodynamic drag of the bigger wagon body shape.