Not all tuning companies are equal ... One such tuner is Abt Sportsline. Even though the RS6’s big, 4-litre twin-turbo V8-powered estate was always going to be a niche offering, it was ...

Back in February, Audi revealed an RS6 Avant variant that took inspiration ... That, plus standard carbon ceramics and a unique center differential tuning, make the car a more serious performance ...