The Audi 90 Quattro is a pleasure to drive. I drive a combination of interstate (about 26 miles) and city driving (about 4 miles) daily. The high quality interior is very comfortable. Fuel economy stays right around 23 mpg. Many people mistake the car to be much newer than it is. As far as problems, my fuel pump went out at around 95,000 miles. I fixed it myself for about $200 (pump and filter). Highs: Quattro models are unbeatable in the wet/snow. Quality, comfort, safety, handling. Lows: Parts availability, Audi dealerships don't really seem to care about their used car owners (except the parts department) My verdict: Quality ride that inspires confidence no matter the conditions.
I traded DOWN from a '96 A4 a few years ago when a second baby made me unconfortable with the high payments. I saved a lot of money and got essentially the same car. Not quite as sexy on the outside but a solid, well- performing german sports sedan. Clean, crips lines like a well-tailored gray flannel suit. Fast, if not quick. Unimpeachable 5-speed transmission, smooth clutch. Very reliable except for some minor electrical issues. Comfortable, if a little cramped for most Americans. Tenacious grip in all conditions.
I live in upper middwest & quattro has never let me down despite lack of judgement when selecting unplowed routes to work. replaced one front ball joint ($200) one heater vent servo, and routine stuff (brake pads & oil). good cargo (40/60 fold down seat) for its size (big trip to IKEA) overall excellent value, still sporty with excellent all conditions handaling and more safety features than other cars its age.