[rmason]

I've lived my entire life in Michigan and I've seen -20 F more than a few times. Once I had a 1995 Ford Ranger and when it got that cold the speedometer would stop working. It was weird driving around for a couple of days with no way of knowing how fast I was going. Then the temperature would get above zero and all of a sudden just like magic the speedometer would be working again.

[grecy]

When it gets good and cold (-48C / -55F), even your tires will freeze flat on the bottom and won't be round.

The first minute or two of slow driving is actually bumpy until they warm up a it (even really, really high quality winter tires do this).

Also strange things happens like the plastic around your gear shift shatters, CV joint covers just tear, your seat is frozen solid so your head is on the roof, etc. etc.