Mercedes-Benz SLS AMG E-Cell Prototype: The All-Electric Gullwing [With Video]

Approximately a year ago, Mercedes-Benz officially revealed plans to develop a fully-electric version of its SLS AMG supercar. Now, the German automaker has unveiled a prototype model of the car named "SLS AMG E-Cell".On the E-Cell prototype, Stuttgart's engineers replaced the standard SLS AMG's 571HP 6.3-liter V8 petrol engine with four electric motors placed near the wheels effectively making