This car almost perfect.
The Aero was the performance version of the 9-5. It came with a 2.3 liter I4 turbo, which moved it to 60 MPH in 6.5 seconds. That's an impressive number. (An Audi 2.8 Avant takes 8.8 seconds, a BMW 525iT, 8.0 seconds and a Volvo V70 T5 6.6 seconds.) The suspension was "sport tuned" and the Aero got some extra aerodynamic body molding.
Saab was known for making safe, reliable cars. The first part was always true. European crash tests put Saabs near the top in safety. As for reliability, Saab slipped around the turn of the century. 1999-2003 Saab 2.3t engines have a high rate of failure due to oil sludge problems. (Similar to the problems VW / Audi had with their 1.8 turbo engine.) Saab corrected the problem in 2004 and created a retrofit repair for earlier engines. When buying an older, pre 2004 Saab, it's important to know whether this repair was done. Using synthetic oil is a must.
This car, when new, sold for over $40,000.00. It's being offered today for about 1/10th of that price. It appears to be in very nice condition. Being a 2004, oil sludge will not be a problem.