I wanted to purchase a 2006 A4 but the majority I have talked to including on here have said that Audi is an unreliable make. Obviously it depends on the car itself, but I don't want a car that will keep breaking down. Especially one that is expensive to repair.
In general they are all right, unless it's automatic transmission. I had 3 a4's blow the automatic transmission computer before 80,000 miles ($2000 fix)