Many moving parts replaced over the 12 years that I have owned car.
CV joints, ball joints, tie rod ends x (2), fuel pump (ouch), plastic injector lines (brittle and easy to break, and hard to find!), clutch, slave cylinder, master brake cylinder, brakes, calipers, and rotors replaced many times.
No engine problems -- bullet proof 2.0, non turbo. Does not leak or burn oil.
Mechanic told me to replace power steering unit 100,000 miles ago. Ha!
Cooling fans have to manually activated.
Most electronic systems failed many years ago, so I wired them myself. Horn still works though!
Ignition switch failed long ago, so I used a screw driver to start it. That technique failed this year, so I hot wired in a button switch. Ignition problem is due to liquids getting in cylinder. Fix -- CUP HOLDERS!
I love this car. It is great in snow and ice. Did I say this car is great in snow and ice! Starts all the time (even in -10 degrees) if you do not touch the gas pedal -- otherwise it floods out. The fuel delivery system is manual and has plastic lines to the injectors. If they break, good luck finding replacements. I complained until the Saab dealer found a partial set in Sweden. The number one line went out, but the replacement lines I found did not have a number one. I used the no 4 line instead but flipping it over.
Overall, I would say that this is one of the best cars I have ever owned, and I have owned a lot of cars. It is starting to rust out, but the engine continues to run excellent. The transmission is manual and I have had no problems with it. Again, to save money, you must do a lot of the work yourself to keep it running good. People laugh at me, but it's OK, I love my Saab.