sentences:  The Volt's revised battery system and drivetrain allow, under the United States Environmental Protection Agency (EPA) cycle, an all-electric range of , up from the first generation's .The EPA combined fuel economy in gasoline-only mode was rated at , up from for the previous generation.The official rating for combined city/highway fuel economy in all-electric mode is 106 miles per gallon gasoline equivalent (MPG-e), up from 98 MPG-e for the 2015 first generation model.