For the first time, Mercedes - Benz has used a steel and
plastic hybrid design for the pedal support, which reduces weight and takes up less space than the previously used technology.
Fujiki said every aspect of the
hybrid system's
design was tweaked for optimal efficiency — such as the motor that increases output from 15 kW to 20 kW, uses more coils and widely spaced magnets, and employs
plastic spacers to better manage temperature.
Features included two permanent magnet synchronous motors at the rear axle rated 381 PS (280 kW; 376 hp) and 820 N ⋅ m (604.80 lb ⋅ ft)(total), torque vectoring, electric single - wheel anti-slip regulation, Multimaterial Space Frame chassis with increased use of carbon - fiber - reinforced polymer over R8 GT, springs made from Fibre - reinforced
plastic, wheel hubs made of forged titanium, anti-roll bar boasts made in
hybrid aluminum and carbon fiber, 19 - inch wheels with friction - optimized 225 - 35 series tires, 48.6 kWh lithium - ion battery beneath the passenger cabin as structural element, Crescendo Red Metallic body colour, fine chrome horizontal struts on the grille, e-tron-specific LED headlamp
design, diffuser at the rear, 7 - inch Multi Media Interface display, 6.7 - inch AMOLED (Active Matrix Organic Light Emitting Diode) optic rear - view mirror system, leather and Alcantara upholstery, e-sound artificial engine noise emitting from a speaker system mounted in the underbody that is audible outside the car at speeds under 60 km / h (37 mph).