Warning, Warning, Warning: Having decided to change my November 2005 A4 Avant 2.0T SE I was in for a shock, despite having 5 months warranty left, only 18500 miles and completely immaculate the best offer was £11.5K with a couple of places refusing to take it at all as a PX. The book price is around £13.5K but the trade say its making about 2.0K less than book. They say as its an estate it needs to be diesel, needs leather, satnav, parking sensors and as a 2.0T needs quattro drive, needless to say I was not happy. I purchased a Audi as I assumed it would be desirable at 3 years old and easy to sell on, how wrong! or maybe I just chose the wrong model .