I agree with the comments about Audi, At least a 16K Golf or Passat will have rear electric windows and a trip computer, a 25K Audi A4 doesn't. I recently spec'd up an A4 1.9 Tdi to a reasonable spec (without sat nav etc), just 17" wheels, leather, multi-cd, trip computer, Xenons and the price shot up to £30K. You'll never get that extra back at resale.