Most people don't even think about/remember to change their accessory belts.
-35 degrees celsius and all of a sudden that old belts getting mighty brittle. Snap = GG lol.
I'd do it in this cold, but only in a vehicle I maintain ... god knows the maintenance that goes on with rental vehicles.
Also road trip to calgary in the summer is beautiful. Make sure to pack a good camera and have a cooler full of cold drinks

Tons of speed traps though