Tesla rear wheel drive cars do actually work well on snow & ice. We did our traction testing on an ice lake! Dual motor AWD is great, but not required for cold weather. Just don’t use sport/summer tires.
Just reviewed Tesla’s service locations in North America & realized we have major gaps in geographic coverage! Sorry for this foolish oversight. Tesla will aim to cover all regions of NA (not just big cities) within 3 to 6 months.