Hi every1 my wife and i are lookin into buying a used audi from a dealer, an a4 s line tdi, initially registered in dec 2005, it has 50k on the clock and they want £11700 for it, i presume its been serviced from new and we would do on average 10k a year, i would purchase it on hp so a reliable car is essential. Is this a good idea some honest feed back would be appreciated, many thanks