I drove mine as my daily driver for about 2 years, but now once it gets into the 40's I pretty much stop driving it, I will occasionally take it out for a ride around the block or a test drive if I have been working on something, but if its salty, icy, or snowy, it stays in the garage.
With all this global warming...I mean climate change going on, we will soon be able to enjoy our cars year 'round.
How cold is too cold for you to drive you classic during the winter months?