This car is a phenomenal car. Even without extra performance add-ons this car screams. Mine is ten years old and doesn't look it. The lines are classic. I fall in love with this car every day I drive it.
This is a super car that not only has very high performance, but also is extremely reliable. Sure if you are stupid enough to add dumb performance parts such as computer chips you will ruin the car and make it unreliable, but I have had mine for 11 years and it has been virtually flawless. Okay I had a PS hose or two replaced, but that is it, all around this car is still like new with no rattles and solid to drive. Can't say that about many other cars that are out there 11 years old with over 110K miles.
I bought my S4 based on performance and longevity. What I didn't realize is the cost of operation. I saw these cars hitting 300k miles, many of them modified for extra horsepower. Well, I had many problems and could tell more were about to surface. For a car that had a sticker of nearly $50k you would think it would be bullet proof reliable. The drivetrain and quattro systems are incredible and a blast to drive in snow and push through turns on dry pavement. The problem is with all the other systems and components. This car never went 10k miles without some kind of repair or adjustment needed even when new.
My 1994 Audi S4 is an exceptional vehicle. After 13 years I'm ready for another option. I will keep the S4 in the garage and drive it into retirement. I have had absolutely no mechanical problems with it. It has a classic design. No one believes me when I tell them the vehicle is 13 years old. Only have 102,000 miles on it and plan on putting another 50,000. My son has requested the vehicle be placed in his name in my estate planning. Power whenever you need it on the highway. I would not change a thing.