I'm fairly certain that I owned the two farthest north VXs on the planet (7 miles north of Fairbanks, Alaska).
Sadly, we don't get as much snow as you'd think, but we do get our fair share of cold.
Our VXs ran like new even as cold as -53F. The only cold related issues that I ever saw were the Rancho 9000 shocks blowing out their oil (oil turns to Jello at those temps) and both vehicles pretty much stayed fogged up, which is annoying as the fog freezes on the inside of the windows. You need to use your ice scraper to keep it cleaned off.

For a cost to value comparison, we ended up trading the Ironman for a V8 Touareg ($50k new). The first day at -20F the following happened:
-mirror mounted turn signal lenses cracked spontaneously,
-the door skins expanded and broke the sealant from the door frame (*pop*), then they rattled around until we got rid of it,
-the battery froze (it is in the passenger compartment),
-the TPMS sensors went into permanant alarm,
-3rd gear went out,
-the luggage rack loosened up to the point that it wouldn't stay in position,
-the PCV valve froze closed, overpressuring the oil system -causing EVERY seal to blow out, spraying 7 quarts of oil everywhere.
-the self aiming HIDs stopped aiming, they just got stuck in the down position,
-a ground strap loosened up, causing a voltage drop from the nominal (an necessary) 13.8V. This caused a whole host of gremlins, from flickering dash lights to a failed steering wheel heater.
-I'm sure that there's more, but I was too disgusted to take notes by then...

The point is, that cold weather really highlights any bad engineering. My VXs (and the handful of others up here) have never experienced a cold-related failure. Way to go Isuzu!