If you're like us, you've been wondering--some of you may even have been doubting--whether Tesla Motors' claim of a 300-mile range in the largest-battery pack 2012 Model S would stand up to EPA testing. Wonder no more: it's close, securing a 265-mile range rating when equipped with the largest (85 kWh) battery pack.

The news comes to us from Green Car Reports' John Voelcker, who confirmed the official figures with Tesla today. Along with the slightly under-target range figure, the Model S gets an 89 MPGe rating--the EPA's somewhat bizarre miles-per-gallon equivalency score. The MPGe rating relates the distance the Model S will travel on the electric equivalent to the energy in a gallon of gasoline.

Despite coming up about 12 percent short of its 300-mile range target, the Model S is nonetheless the widest-ranging all-electric car available, outstripping the Leaf's 100-mile range considerably, though the Leaf does get a 99 MPGe rating from the EPA.

Part of the reason for the Model S's slightly lower MPGe rating is its size--with that much mass, it has to be slightly less efficient than the Leaf, just as with gasoline-fed cars. Another part of the reason is the Model S's performance: while the Leaf tops out at 90 mph and gets to 60 mph in 10 seconds, the Model S can run up to 130 mph and hit 60 mph in just 5.6 seconds (or 4.4 with the Performance package).  

Fast, attractive, efficient, and nearly the range of a gasoline-powered car? Yeah, sounds good to us.