US President Barack Obama's new fuel economy standards announced on Wednesday (20 May) have won praise domestically and around the world for being America's first emissions cap, but however much of a step forward, if passed, the car emission rules will still lag far behind those of Europe's own much criticised rules.
Mr Obama's plan, a compromise between car manufacturers and environmental critics, would require the average US vehicle - cars and light trucks - to achieve 35.5 miles per ...
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