That said, the S4’s combination of pace, usability and reasonable running costs means that the forthcoming RS4 Avant will have its work cut out justifying the sizeable supplement Audi will ...

while our test car also featured Audi’s locking ‘Sport differential’ at the rear axle. In saloon form the S4 is capable of 0-62mph in 4.8sec – two-tenths quicker than an S6 Avant and just ...