Love the car, hate the cost of parts!
My Audi A4 is a terrific road car. I love how it performs. What I don't like is the cost for parts. You can't put any after-market part on and that greats a sort of monopoly in that you have to get Audi parts. Some of the parts can be pretty pricey! For example, I just had to put new wiper arms on. They had to be Audi and they were $80 a piece. And, only Audi wiper blades would fit the arms. The wiper blades were 10x the cost of any other wiper blade. That's ridiculous!
Other than that, I love the car.