I live in Alaska and use my present vehicle in a small city but also frequently travel away from heated garages. The temperatures in south central Alaska can easily reach -40 f. Has anyone had experience with hybrid vehicles in conditions where they may be left outdoors in -40 f conditions? I know such severe cold affects machinery and engines generally. What is the effect on battery systems in hybrids??

A related question is the passenger cabin heater. A conventional engine supplies hot collant fluid which in turn heats the passenger cabin. What is the source for heating the passenger cabin in a hybrid? Must the engine be run up to temp to then supply heat? Can the vehicle be warmed u p prior to traveling?

Thanks for sharing any experience or knowlege on these points.