I had an a4, and it was my favorite car I’ve ever owned, style, luxury, decent speed. There is just a feel that you get while you’re driving it…it’s hard to explain. But with that said, I used to be a full service mechanic, and I did have to do a full turbo job at 56k. The part was $1500 alone and the dealer quoted me $3500 for the job. (I did it myself). If you’re gonna buy a car like this, definitely make sure you have money for repairs. The car itself is on the less expensive side, but the parts and repairs are still going to be luxury brand price.