Greenland Contractors are the main support industry at Thule Air Base. Everywhere are their red vehicles; from pickups, to vans, to mini-bus taxis to garbage collection. We even used their vehicles to go between the radar site and the Inn.
In a place so isolated and extreme, the keys are left in them at all times and if not plugged in (with a system much more robust than the US/Canadian simple block/battery/pan heater system) they are left running - on JP8 - jet fuel which is formulated with icing inhibitor, corrosion inhibitors, lubricants, and antistatic agents.
(After thought - apparently red wasn't the original colour; accident statistics might have had a input in changing the scheme.)