Detroit’s automakers rolled out multiple examples of their green futures Monday, promising that consumers will soon have a much wider array of alternative-fuel vehicles to choose from. General Motors – long the juiciest target for environmentalists – unveiled what it says will be the first commercially available plug-in electric vehicle, a concept Saturn Vue that it intends to have on sale by the fall of 2010. It will drive up to 16 kilometres on a a five-hour charge before its gasoline engine kicks in. GM also revealed a next-generation Vue two-mode hybrid, which will get 50 per cent better mileage than its current Vue hybrid – available for less than a year in Canada – at the second day of the press preview of the North American International Auto Show. And there was more: a Cadillac fuel cell concept called the Provoq that burns no gasoline at all and a futuristic Saturn all-electric car concept called the Flexstreme. Chrysler rolled three racy alternative-fuel concepts onto its stage Monday: a diesel hybrid Jeep dune buggy called the Renegade, a Chrysler luxury sedan that would run on a hydrogen fuel cell – the eco-Voyageur – and an all-electric, […]