Hi I have owned two Saabs and the only problems I am aware of is that oil sludging in the oil pan can occour resulting in major engine failure, how ever this is a problem that Saab themselves are aware of an I believe have a program to fix problem. But that said if correct service interals are adhered to and correct oil used they are nothing but pure pleasure. I currently have a 9-5 with the 2.3 ltr turbo and love it in every way. good luck