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 ...

But Audi remains dedicated to the wagon cause, and has produced a very special edition of its go fast RS6 model, the GT Avant. Based mostly on the RS6 Avant Performance, which sees power upped ...