the EPA anointed

government-approved

Move over, Nissan , because there's a new MPGe king in town. Yesterday,Tesla scored its Roadster 2.5 with an MPGe rating of 119, which would make it the most fuel-efficient car on the market. That places the plug-in ahead of both the Nissan Leaf (99 MPGe) and Chevy Volt (93 MPGe). According to themock-up window sticker, Tesla's EV can last for up to 245 miles on a single, eight-hour charge, while getting the equivalent of 112 miles per gallon on the highway and 124 in the city. The original Roadster , meanwhile, received an MPGe score of 111 yesterday, with ratings of 105 on the open road and 116 in the city. Both models scored a perfect 10 for their greenhouse gas and smog emissions, though those ratings probably didn't factor in all the cash you'd have to burn to actually buy one.We just heard from the EPA, which clarified that this is not their official rating for the Roadster 2.5. These numbers are Tesla's, and the window sticker itself is a mockup - not a legitimate sticker from the EPA. Still, if you'd like to see it, it's down after the break.