Outside -32°C and the cabin temperature still sufficient. The cold continued to drop during the day to -34.8°C, but the car was still drivable and the cabin remained moderately warm. One problem appeared when I drove for a while in -33°C and below, the battery got so cold that it no longer accepted a charge when I tried to charge outside (garage tent), so I had to take the car to the garage and charge in a warm place. It was the first time I had to charge the car somewhere other than outside.
So, up to about -30°C, the car can be charged outside, but when the cold drops below that, a heated garage must be available.
I hope this helps if anyone is wondering how the Dacia Spring works in freezing temperatures
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