 Regenerative braking is employed to extend range; under normal braking (i.e., excluding panic and emergency stops), the brake pedal engages only regenerative braking down to speeds of , when the conventional mechanical brakes begin to engage.Robert Bosch GmbH supplies all the powertrain components for the 500e, including the electric motor, power electronics, and battery.The motor, which Bosch have designated the SMG ("sequential motor-generator") 180/120, is shared with other vehicles, including the smart fortwo electric and PSA GROUP's HYbrid4.