The Audi RS4 has come of age and matured into a stunning model in its latest semi-estate or Avant version, writes Robin Roberts. RS4 production has been on and off since it was launched in 1999 and it is currently the fourth generation of the most driver-focused model in the immensely popular and wide Audi A4 range. Audi looked very hard at the sector where it wanted to push the RS4 and … [Read more...]