“Plug–in electric drive vehicle” means a motor vehicle that: Is made by a manufacturer; Is manufactured primarily for use on public streets, roads, and highways; Is rated at not more than 8,500 pounds unloaded gross vehicle weight; Has a maximum speed capability of at least 55 miles per hour; and Is propelled to a significant extent by an electric motor that draws electricity from a battery that: Has a capacity of not less than 4 kilowatt–hours for 4–wheeled motor vehicles and not less than 2.5 kilowatt–hours for 2–wheeled or 3–wheeled motor vehicles; and Is capable of being recharged from an external source of electricity. “Plug–in electric drive vehicle” includes a qualifying vehicle that has been modified from original manufacturer specifications.