I lose around 20% in winter compared to summer, more if you do mostly short journeys as most of the loss is heating the car from cold. I don’t preheat whilst plugged in as that’s at full price, so preheat or normal heat is done from the battery at the off peak rate of 9p per kw instead of 29.
Overall range drops from around 250 miles in summer to around 205 in winter, the std heat pump on the Soul helps a lot with that.
In life, it's not who you know that's important, it's how your wife found out.