Everybody who owns a LEAF would own a Model S if it were $50k cheaper. ;) My 2012 LEAF was $22k (MSRP at the time $37k) with Federal and State incentives.

The LEAF would work in your scenario easily. The energy economy of the Nissan LEAF is greater at slow speeds.... actually, 12 MPH is the sweet spot.. you could likely get 200 miles from the LEAF if you kept it at 12 MPH. ;) Using the heater is a drain on the traction battery, but you've got seat heaters and a steering wheel heater and the ability to pre-heat the cabin before you leave. The 2013 model has a heat pump which is supposed to make heating the cabin more efficient.