Audi’s lowest consumption figure for the new A2 e-tron comes from the 140 kW version with the optional efficiency package. At 12.8 kWh/100 km on the combined WLTP cycle, Audi calls it the most efficient model it has made. Aerodynamics and battery technology contribute to that result, but the rear drive unit offers a closer look at where the engineers found savings. They targeted the energy lost at each step between the battery and the wheels, from switching current in … Continue reading Tech Focus: Drivetrain Behind Audi A2’s Efficiency Package