Maybe not directly on topic, but it was -35C this morning and last night, and I found myself driving around. At these temps, the car had difficulty maintaining its operating temperature.
With 4 people in the car the fan needed to be at max or nearly max just to keep the windscreen from frosting over, and in city driving, with the fan on max, at -35C, the engine wouldn't get to 91degrees (normal operating temp), but went between about 80 (while driving) and 70 (at stop lights). It seemed to work just fine, but not as well as a v8 truck for throwing heat.
It got me to wondering, also, how well an all-electric car would work at keeping the cabin frost-free during cold weather - seems that would be considerable drain on a cold battery.
View my fuel log 2014 Mirage SE 1.2 manual: 45.0 mpg (US) ... 19.1 km/L ... 5.2 L/100 km ... 54.1 mpg (Imp)
One advantage of an EV in cold weather is you can remotely pre-condition the cabin while it's still plugged in (which it often is).
The other: INSTANT heat.
Definitely eats range while underway though.
View my fuel log 2015 Mirage ES 1.2 automatic: 40.6 mpg (US) ... 17.3 km/L ... 5.8 L/100 km ... 48.8 mpg (Imp)
I'm pretty sure blocking the grills will go a long way towards helping the motor warm up better/faster. One forum member went as far as to wrap insulation around the engine block.