This Week at Treehugger: the EPA takes a hard look at fuel economy ratings; we take a look back at some possibly not so memorable Superbowl hybrid ads; more fun ways to hack your Prius and see what s going through its brain; we pass along the good word on the Civic and Camry hybrids; the X-Prize for automobiles is born; and some fun, weird patents from about everything you can think of with wheels.
[Treehugger's Perspective Shift roundup appears every Wednesday]