Is electromagnetic interference enough to justify disabling AM radio in the BMW i3? Saab parent NEVS ... and the electric motor (crankcase with rotor and stator) – to form the electric powertrain.

BMW officially unveiled its i3 concept ahead of the car's on-stage debut at the 2011 Frankfurt Motor Show. Details on the i3 and upcoming i8 poured out. Click here for all of that initial info.

BMW's remained relatively tight-lipped on potential i3 and M3 powertrains, but we do know that the M division has been experimenting with quad-motor powertrains for at least a couple of years in ...