Business Insider answers the question, “Do you still need to ‘warm up’ your care when it’s cold outside?â€
Unless your car dates back to the 1980s, there is no reason to warm up the engine. Cars from that period in time had carburetors which twist ope a small plate to suck air and fuel through a tube and into the engine.
If the carburetor was too cold, it didn’t work properly, so you needed to warm up the car.
Newer cars (1990s and forward) have fuel-injection systems, which uses sensors to keep the ratio of air and fuel just right. More importantly they don’t have problems with cold temperatures.