I bought my A4 used about a year ago, and I have fallen in love! There is no other used car out there that can match the fun to drive, reliability, build quality, or fuel economy for that matter. I can manage around 20-24 around town, and at most 28 on the highway, that's pretty good, considering its a 15 year old car with 215,000 miles on it, with a V6, and Quattro. Like I said, it has 215,000, and it still runs like a dream. The only problem I have had with it is an EGR code always popping up, I went thru the whole EGR system, and couldn't find anything. Turns out it was the filler hose on the gas tank, sense it also leaked when I filled it up.
Definitely the hallmarks of Audi, their absolutely fantastically well laid out interiors, and the build quality of them, amazing. Like I said, 215,000 miles, 15 years old, and not a single rattle or squeak. The other, has to be Quattro. I know I don't take full advantage of it, but I love to go around a corner at 50 mph, and not have to worry about a thing, because I know the Quattro will keep my right on track. I also LOVE the 5-Speed. This car WOULD NOT be the same with the automatic. After owning this car, I promised myself that I would never own an automatic, EVER. There is also a surprising amount of space in the trunk too, as in, it's almost as big as my grandparent's Town Car's trunk.
If there is one thing I don't like, its the stupid center console. The top is held on by two little hinges that stick into the side of the console, and it's constantly breaking. In fact it's a good thing they redesigned the whole center console in the newer cars, because the whole thing was just way too flimsy. My brother had a 2003 Jetta, and it was the same center console. It "recommends" Premium, but I just blew it off, why would I use Premium when I don't have to? Well, out of the blue one day, I decided to use Premium, I saw a large jump in both performance, and fuel economy. Plus, the A/C KILLS the fuel economy. I only turn it on once a month now, just to keep it working.
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.