I live in Manitoba, 05 Magnum RT, 270,000 kms on it. Gets driven every day, 365 days a year. Only thing I've replaced outside of normal maintenance is the crank sensor, a t-stat, oil pressure sensor, and A/C compressor. Runs pretty good but you can tell it's getting abit tired, will likely replace the timing chain this spring.

I think with our climate, you'd have to multiply your mileage by 1.5-2X to compare it to fair weather cars mechanically. 0 to -40 F is a real killer on vehicles