Audi admits the new RS5 has put on ‘some weight,’ but swears you won’t feel it. The RS5 Avant weighs 5,225 lbs (2,370 kg). The sedan isn’t much lighter, at 5,192 lbs (2,355 kg). They say weight is the enemy of performance, but the company with the Four Rings is confident it has found a way to offset the massive heft brought by the new RS5’s plug-in hybrid system. In an official post on LinkedIn, Audi Sport’s Managing Director pledged the new fast wagon “feels agile...