Should You Warm Up Your Car Before Driving?
A couple of years ago, this question would have been answered in a yes. You might be wondering what has changed from then to now? To put it simply, advancement in the engine designs has led to a lot more safer and intelligent engines. The biggest difference between both (Carburetor and modern IC engines) is the manual control of air-fuel mixture in carburetor engines, as opposed to electronically controlled air-fuel mixture with temperature sensing to increase the engine performance and productivity in (almost) all conditions.
This video describes why carburetor engines need to be warmed up as opposed to their modern counterparts and goes in to schematics as to what happens in the carburetor engine furring cold weather.
(Video Courtesy: Engineering Explained)