I purchased this car with 50,000 miles on it back in 01' - it now has almost 140,000. The good - great engine, plenty of pep, nowhere near needing a rebuild. The bad - I recently had to replace the muffler, as well as having the abs module rebuilt (only $140), apparently a common weak point on these cars. Generally repairs do not come cheap and get increasingly hard to justify as the car gets older. The ugly - the top. Have had it in 4 or 5 times to get fixed since I owned it - never the motor though, always some goofy part that causes the whole thing not to work. These cars are a joy to drive and style-wise have held up rather very well. I won't be getting rid of mine anytime soon.
Engine - have heard they have a reputation for sludge, but I've always had the oil replaced every 3k - no problems, very peppy, never needed repairs.
The top stinks. I have heard Saab fixed many of the problems in later models.