A week-long road test in the new Toyota Prius Plug-In Hybrid (PHEV) created two notable firsts for me, says David Miles. It was the first road test production car I have tested with a solar roof and it was the first test car to return over 100mpg for a full week of motoring. The sales success of PHEVs have created the driving force for increased demand of Alternatively Fuelled Vehicles in … [Read more...]