Five-year cost to own: $24,650. The cheapest electric car to purchase and lease also has the lowest five-year ownership costs. Unfortunately the Smart EQ ForTwo is not for everyone as it seats only two, has little in the way of cargo space, and musters a feeble operating range of just 58 miles. Out-of-pocket expenses are estimated at $12,490 over half a decade. On the plus side, it’s the only EV available as a convertible, and the base coupe’s depreciation is a modest $15,587, based on a $24,650 MSRP. It’s rated at 124/94 MPGe.