I've had my car about 2 weeks now, just charged it once - up to like 270 miles of range. I've driven less than 50 miles since then and the range is now down to 163 miles! What is going on? I am in a lot of stop and go traffic - does it make that much of a difference? I do have the full regen braking. Does the range estimate ever adjust based on driving history? Or does it always assume you will be driving on an open freeway? That's kind of dangerous if you are low on range in an urban area. It doesn't seem to be reliable.