While most of my Saabs have been good with throwing heat, I'll never forget the heater core slowly going in my old 89 900s 2dr 5spd....Besides that though, Saabs are great when it comes to comfort, especially in the winter when heated seats become a necessity.
Best cold weather car I ever had was a 2000 Audi A6 2.8 Quattro. The car was slow, but was loaded and comfortable. Best cold weather feature was a heated steering wheel! One minute and your hands would be warm, if not burning....amazing feature that I still miss. I think Saab should incorporate the same thing into their new vehicles if it isn't already available.