See this trueachievements guide for tips:
https://www.trueachievements.com/a269944/winter-is-running-a...Important note (commented over on trueachievements by me):
After I did everything required it unlocked only after I restarted the game, went into freeroam and drove around for about 1 minute. Then it "randomly" unlocked... At least it kinda works :)
Playing via Steam on PC @ 7th Dec 2021