A great source for SAAB wheels is Ronal - www.ronalusa.com . Ronal made many of the original SAAB wheels and still makes compatible ones for Classic SAABs as well as for NG 900's, 9-3's and 9-5's. They offer 14-17" wheels even for older SAABs. See their wheel selections on their web site, INDEX of CARS section, Saab--older 4 lug...or go to Ford Focus for most current wheel styles and sizes. These same wheels and sizes, in different offsets are available for older Saabs.
Thanks for the info... always wondered what ET actually stood for.
Are you sure about those numbers? After Googling I've found lots of references to the 9-5 using a 49mm offset for the 16x6.5" wheels and 42mm for 17x7" wheels. However, there is some contradictory information here and there.
I found a PDF of a 2005 9-5 manual that says this:
Wheels larger than 17” must not be fitted.
Wheel offset must be 49 mm.
Vehicles with 12.05” in (306 mm) front brake discs must not use