Found this on another forum with great reviews.
Schoneville Saab (1 Kilbirnie Place, Tradeston Industrial Estate, close to West St Underground, enter from the A77 side and not the Clyde/Tradeston side as West St is blocked for through traffic next to the underground station).
Servicing price list on the website www.schonevillesaab.com
They attended to a member, at short notice, to sort out his clattering rear brake pads. The owner also took him out on a test drive to diagnose some clutch noise which he asked for advice about and give him recommedations. He did like this personal touch to the service and you don't feel that you are paying to support a large dealer "temple" as per Western at the top of the street!!