Should you warm up your car before driving YES & there are many benefits.
Most engine wear occurs at startup & the engine does take longer to warm up at idle.
Also at colder temperature your car uses more fuel at startup causing oil dilution plus inside the combustion chamber it will clean the oil film that provides protection for the piston rings. So the longer the time to warm up the more these problems occur. This video will explain the best actions to take and many that are not considered. I also use a IR thermal imaging camera in order to see how long it take for operating temperatures.
Lets find out what is best for your car on Nates interactive auto. Always follow manufacturer's instructions above all.

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