The new RS5 models combine a twin-turbo 2.9-liter V6 with an electric motor. Total system power: 630 hp and 825 Nm. The 25.9 kWh battery pack provides a significant weight loss compared to previous models. Electric range: 54 miles. Mercedes-AMG and BMW M already offer plug-in hybrids, and now it’s Audi Sport’s turn to launch […]