The GTE takes around 2.5 hours to charge up fully if you use a public charging station, or over four hours if you plug in to a normal household socket. Apart from fully electric mode, the GTE also offers the Battery Charge Mode. Here the car is powered by the gasoline engine which charges the electric battery at the same time - useful for longer trips, especially on the freeway. That's the theory at least, Drive it! puts the GTE to the test to find out how it fares in practice.