Might be the winter tires. Since the car is heavier I think tires might need to be a little beefier, and thus cost a little more.

Tesla did a pretty good job with their heat pump. Even with it though your range really suffers. I can’t remember exactly but it might take your range from 325 miles to something like 250/260. Without the heat pump I remember hearing something closer to half range, but that might be battery manufacturer specific, not sure. So like the other commenter said, make sure you get an EV with a heat pump if you live in a cold area.