A five-passenger prototype car has been built to demonstrate and develop the hybrid drive concept. It uses a battery electric drive system similar to that already used on 1-tonne payload vans, together with an IC engine and generator enabling operation in both series and parallel modes. With a projected range of some 40 miles (64 kilometres) in urban traffic in battery-only mode, the car has been designed to have traffic compatible performance and the ability to cruise on highways indefinitely using the engine, with additional power available from the electric motor if required.