I have a couple of questions and I think this is the best place to get answers. I am thinking of buying an 07' A4 6 speed manual with 62k on it. I work at the dealership and they are asking 17k and I could probably get it for like 14k. I don't know much about Audi but I have always loved German cars and how they perform. How well do these perform on average at the mileage and at future miles if taken care of properly. Like will I have to do a lot of big jobs on them like a head gasket or anything like that. Are there any common problems with these? Also what about upgrades for this, what upgrades are recommended. Any information would be great thank you!