It's been a long four years coming, but the i8 Roadster brings open - top cruising to the i8's bag
of tricks, which otherwise includes making a three - cylinder turbocharged 1.5 - liter engine sound great (perhaps the greatest
sorcery of all), and yet at the same time delivering an all - electric mode that brooks no gimmickry, great handling, and surprising driver engagement given the 28 mpg combined rating and 76 mpge rating when in electric - only mode — a level
of efficiency typically reserved for numb, coddling commute -
boxes.