The A2 e-tron is the most efficient Audi of all time. According to WLTP measurements, the preliminary energy consumption of the upcoming compact electric model in the 140-kW power level with the optional efficiency package (Audi A2 e-tron 140 kW: Combined electric power consumption in kWh/100 km: 15.6–12.8 (preliminary); combined CO2 emissions in g/km: 0; CO2 class: A) amounts to 12.8 kilowatt-hours per 100 kilometers. This is made possible by advanced drive technology, sophisticated aerodynamics, and a battery optimized for everyday use.