Reports say that Tesla has updated its algorithm to better predict range when using navigation. Supposedly, this improvement is markedly better in cold weather climates. I did a mini test on my way to work (which is notoriously incorrect) to see if it was any better.
Firmware Version: 2018.50.6
Here is the link that is referenced at the end of the video: https://electrek.co/2019/01/24/tesla-range-prediction-algorithm-temperature-data/