Electric vehicles were one of the dominant features of this year's Frankfurt motor show. But unlike in 2007, nearly all the ones that were on show this year were very real runners. As an engineer, the future excites Tony Butcher who started in the car industry as an apprentice, gaining an MSc in engineering business management, before joining Rover. He progressed through the ranks running major operations at Unipart and Benetton F1 before ending up at Prodrive in 1998.