New York Times: The sight of the presidential limo (a Cadillac known as “The Beast”) performing a five-point turn last week in front of 10 Downing Street in London made it glaringly obvious why Europeans have come to prefer smaller cars that fit through their medieval cities. It may also symbolize how hard it will be for America to turn a corner on its energy policies. Like his predecessors, President Obama has vowed to reduce the nation’s dependence on oil, but in his case, he has wasted little time …