is ramping up the testing of the new SLS AMG E-Cell with some preliminary testing on the roads of Germany. The production version of the electric concept may look like the "standard" SLS AMG coupe, however this new model is anything but ordinary. The SLS AMG E-Cell essentially is to Mercedes-Benz what the i8 is to BMW
and the R8 e-tron is to Audi
, with an electronic drivetrain that has been in development since 2010.