I think it's a good idea to let any car warm up for a few minutes when it's outside & really cold.
This gives the belts and especially the radiator hoses a chance to warm up, lessening the chance of them bursting or popping off.
Just my opinion, no actual data to back it up.

 

Booohooo with $3 a gallon... We're at $1.30/L + an extra 16 cents a litre for 91 octane which is almost $6 a gallon in Ontario!!!

 

The average income in Ontario is almost 3x what it is in my area, where premium is just shy of $4/gallon