Mercedes-Benz Concept BlueZERO

Mercedes-Benz Concept BlueZEROBlueZERO E-CELL Plus, essentially a series hybrid, hasa range of about 100 kilometers (62 miles) from its plug-in batterypack; when the batteries run out, a rear-mounted 1.0-liter 3-cylindergasoline engine—the same powerplant in the Smart Fortwo—firesup and acts like a generator, running at a constant 3500 rpm to feed acontinuous stream of 50 kw (67 bhp) to the