I used to live in Fairbanks. I can't imagine an e46 at -80. A Ford F150 with dual block heaters barely pulled through a winter up there, square tires and all. Ultimately the F150 succumbed to the harsh weather due to a cracked frame.
/// Auto => 6-Spd Manual Conversion | Apex EC-7 | Koni/Ground Control Coilovers | Vorshlag Camber Plates | Meyle HD LCA | PowerFlex bushings | GruppeM rep CAI | Shark Injector | 5000k Xenarc CBI 66240 HID | BMW European MTechII | BMW Performance Shifter | ACS Mirrors and Rear Spoiler ///