Do you let your old engine warm up or just get in and drive?

Darter6 said

Cold weather below 60* Run for a few minutes,kick off fast idle,drop in gear. If it idles in gear it's ready to go.

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60°, that is a nice summer day for me. Fire it up and once you have oil pressure drive away taking it easy. No straight onto a freeway. We just had a few nights at -40°. F and C the same at that temp. And that was without windchill. At that temp a moose walking by and farts and the air feel 5° colder. Heck the neighbor who is a *****/witch even quit going out to warm her titties.
Back to the topic at hand, when that cold condensation from breathing frosts up the windows until the heater starts putting out some warm air. W to 5 minutes warmup.should be enough. Remember the engine warms faster with a bit of load on it, aka driving.
About 18 years ago we had a morning that was -50°C or about -60°F.