I'm really excited for Tesla and have been waiting to order one some day. But the problem is, while battery performance in winter doesn't concern me too much - rear while drive and extremely low clearance does. It's just a non-starter in northern climates. My Subaru outback handles this with ease and I feel the Tesla would be a nightmare. It's unfortunate really, they want to make it feel like a race car instead of a practical car.
We had an all time record snowfall in February and it's been an intense winter.
EDIT: I realize they have an all wheel drive option but it's 10k more than the 35k option putting it in a luxury market. Not many Americans can responsibly afford a 45k car.