With a drag coefficient of just 0.158, it has the most aerodynamic body of any road-legal car. It’s also the most efficient EV in its class, consuming just 6.89 kWh/100 km without charging losses. The VW Mission Efficiency covered 1,278 km (794 miles) on a single charge and still had 164 km (102 miles) of range left at the end of the trip. Volkswagen has built an electric car that looks like it escaped from a wind-tunnel experiment, and the numbers back up the unusual design. The Mission Efficie...