Audi has the R8,
Mercedes-Benz has the SLS AMG,
Porsche only recently started doing anything BUT sportscars, but
BMW doesn't have a proper sportscar to top its lineup. That's about to change with the upcoming introduction i8, pictured here undergoing summer testing in southern Europe. What makes the i8 different from the R8 and SLS, however, is that it's a plug-in hybrid, with power more or less evenly distributed between the internal-combustion engine and the electirc motor.