This is my second 1999 Audi A6. Both cars have proven to be very durable. Each car had the same minor issues, ie: broken mirror adjust switch, et cetera. (easy fixes) The build quality is top level, classic styling , decent power, and unstoppable in any weather. I have done most of the things people complain about in their reviews, but they don't seem to understand its routine maintenance, control arms, timing belts, and others. That being said, if you maintain a car like this properly, it will last a very long time. Owning a high end German car is a commitment (but ultimately very rewarding) , if your not willing to pay, get a generic Japanese luxury car, what a tool you'll look.
Maintain/change fluids on time and preform routine maintenance, and this car will never let you down. Classic styling, quattro, and xenon headlights are mint.