Agreed. Also in London at least at lot of the vehicles are being used in multiple shifts, which makes this problem even worse. Eg: Driver A does 9am-6pm, then

Agreed. Also in London at least at lot of the vehicles are being used in multiple shifts, which makes this problem even worse. Eg: Driver A does 9am-6pm, then drives the Prius to Driver B, who does 6pm to 3am, which leaves not enough time to charge.