Ford Focus RS: Mk1, Mk2 and Mk3, the RS500, and the ST170 that came first (2002–2018) The Ford Focus RS is the fast Ford of the twenty-first century, three generations of it from the 4,501-car Mk1 of 2002 to the 345 bhp four-wheel-drive Mk3 of 2016, with the matte-black RS500 between and the ST170 and ST before them. A guide to what each one is, how they drive, what to check, and what the sale rooms pay now that the first cars are classics.