The electric SLS’s primary party trick is a function of the four electric motors that power it. With each motor dedicated to driving a single wheel, the ED’s computers have precise control over the forces that make a car change direction. Accelerating and braking each motor independently of the others turns this 4700-pound brute into a ballerina. The level of torque vectoring—what AMG calls “torque dynamics”—can be set to one of three modes. In Comfort, the SLS electric drive can’t hide its 900-pound surplus over the gas model. The electric car is reluctant to change direction, and the steering is sluggish. With the body always a step behind the wheels, the SLS feels more like an S-class than a half-million-dollar sports car.