The RS4 isn't a car you buy if you have one eye on running costs. As well as high fuel bills, insurance, servicing and any parts will all be expensive. When new it was competitively priced alongside the M3 with a price tag of more than £50,000. But it does come loaded with kit and of course, mind-blowing performance.
Servicing: Variable - according to on-board computer.
Warranty: Three years/60,000 miles.
Full running costs data
