I drive mine all yr long too, I dont know why you wouldn't. I've been around my dad whos owned Porsches since he was 20yrs old and currently has 4 and drives them all in the winter as he has his whole life so i dont see anything unusual when i see an expensive sports car out in the snow. After all a car is just a car, and if I bought it I better be able to enjoy it all yrs long, plus its really much more safe then people think... Ive been driving sports /performance cars every winter since I was 16 and I've never had an accident of any sort...its all in good quality tires