I've been in the market for a low mileage used Audi. Think I found one I'm going to buy. 2004 A6 with the 2.7 twin turbo engine. I settled on that model after reading some of the common problems with other models on this site. I just need to find some after market tail lights because those stock ones are hideousssssssssssssssss. I'll post pics if I buy the car. This forum helped a lot in the purchase process!