How does a Tesla perform in the Winter?

In one word AMAZING! There are several contributing factors: First the placement of the weight in the vehicle moving from the front engine compartment to the central spine of the vehicle eliminates the rear end sway typically associated with a RWD vehicle. Direct electronic slip control helps when the system does sense any loss of traction. While you will see about 15-20% loss of range this is typical to the reduced fuel milage gas cars experience in the winter.