I assume you are not allowed to drive if you can not see, even if the car would be able to. But the car has a very good heater system, is has fairly large and narrow wheels for the size of the car, narrow is good for snow. At the time it came out it was ahead of many other cars when it came to winter use.
But, as with anything, everything has it's limits. Also a Saab. Just that they had a very good reputation in Scandinavia when it came to winter driving. I have never driven a Saab, but I have driven other front wheel drive cars in the winter, and I am so so satisfied with that. I have also driven 1965 Dodge Dart in the winter, and felt that was a good winter car too. Excellent actually. Just that I stopped using it before the winter tires became really good in the early 90ties.