 The 1999 Audi A4 2.8 quattro Sedan is a fun car to drive, most notably due to its incredible power and handling. Its front seats are very compfortable, and its controls are logically positioned and easy to access.  The rear seats are a bit cramped, but OK for occasional use.  It has lots of trunk space. Audi's 50,000 mile warranty (even covers oil changes) is excellent assuming you drive enough miles per year to make use of the full warranty. Despite the fact that the car was carefully driven and exceptionally well maintained, problems began after the warranty expired. Major problems included fuel injectors (55,000 miles, $600), lower control arms (70,000 miles, $800), and both rear wheel bearings (80,000 miles, $650).