EPA hasn't actually tested the Volt's 230 mpg
Tuesday, GM announced that the Chevrolet Volt would achieve an EPA estimated 230 city mpg. Apparently, GM forgot to tell the EPA.
The official statement released by the EPA states:
EPA has not tested a Chevy Volt and therefore cannot confirm the fuel economy values claimed by GM. EPA does applaud GM's commitment to designing and building the car of the future--an American-made car that will save families money, significantly reduce our dependence on foreign oil, and create good-paying American jobs. We're proud to see American companies and American workers leading the world in the clean energy innovations … Read more