Their environmental friendliness: They produce no tailpipe emissions. Technically, electric cars are not pollution-free; the amount of pollution they produce depends on how the electricity used to charge them is generated. Even so, electric cars are responsible for significantly less pollution than fuel-powered cars. Because electricity can be produced in so many different ways, they are not reliant on a non-renewable energy source like oil.
Electric cars are virtually maintenance-free: There is no oil to change, no radiator to flush, no transmission to service, no spark plugs to change and no fuel system to adjust, and because they produce no exhaust, they are exempt from emissions tests.
Tax Credit: Subsidies in the form of tax credits (currently $7,500 from the Federal government, with additionalprograms in some states) help to narrow the price gap.