Rolls-Royce 102EX

The Rolls-Royce 102EX, also known as the Phantom Experimental Electric or EE, is a one-off electric prototype version of the Rolls-Royce Phantom VII, created by Rolls-Royce to gauge the response of customers and other stakeholders to an electric Rolls-Royce. It was unveiled at the 2011 Geneva Motor Show. It is powered by two synchronous permanent-magnet electric motors supplied by UQM and mounted on the rear sub-frame, each rated at 145 kW for a maximum system output of 290 kW (389 hp), with maximum torque of 800 Nm. Power goes to the rear wheels through a one-speed Xtrac transmission with integrated differential. The motors are fed by a 71 kWh battery pack of 96 NCM cells placed where a standard Phantom's engine and gearbox sit, with peak battery current of 850 amperes at 338 volts DC; the cells were made by Dow Kokam and assembled into a pack by Axeon, with the drivetrain integration done by Lotus Engineering.