Guardian: SUV factories closing, bicycle sales and train use rocketing, commuter belts becoming “ghostburbs” as residents flock to the inner cities . . . welcome to 2008 America, where soaring oil and petrol prices have triggered a sudden revolution in travel behaviour and a seismic upheaval in the automobile industry. Four dollars (£2) for a gallon of petrol may seem like peanuts on this side of the pond, but in the shellshocked US, where pump prices have doubled since 2004, it is …