I recently wrote about how much my partner and I are enjoying our Kia Sorento plug-in hybrid, despite its handful of nitpicky complaints. The car has proven to be quite efficient for how we use it, especially once we got the level 2 charger installed in our garage, and can get a useable re-charge in between trips during the day. We even managed to drive over a thousand miles on a single tank of gas!
Unfortunately, that thousand mile tank of gas has not been able to repeat itself quite yet because it turns out that the Sorento might not be the most efficient cold-weather PHEV on the market. The reason for this is that all the heating for the cabin of the car is reliant on the gas engine. The car is not equipped with a heat pump (which is usually standard on EVs) and has no electric heating at all. If you are running the cabin heater, or the heated seats, the gasoline engine will engage, regardless of how much battery range is remaining, or what your selected drive mode is.
Kia Sorento heater runs exclusively off the gas engine.
This was not something that my partner and I had even bothered to research or consider when deciding which car to purchase. However, it's unlikely to have been a deal-breaker for us, personally. The reason for this is that we live in Las Vegas, Nevada. We only get a few months of "winter" weather, and even those months are still [usually] not terribly cold. Daytime highs usually hover between the low 60's and mid 50's (Fahrenheit), and we go years without seeing any snow in the city.
As such, the Sorento's lack of a heat pump, and its reliance on the gas engine for heating isn't quite as problematic as it might be in Northern Nevada, or in a state like Wisconsin or Maine. If you're in the market for an EV or PHEV, and you live in a cold-weather region, you might want to consider a vehicle other than the Sorento, as you'll be losing a lot of the advantages of the electric motor and battery if you're driving in freezing weather.
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