I use either an electric engine/cabin heater or a fuel burning heater. Of course you need to get the heat from something before the engine is started. Because t

I use either an electric engine/cabin heater or a fuel burning heater. Of course you need to get the heat from something before the engine is started. Because the engine is what I want to heat before starting it. On my current car it’s the latter (fuel heater). Often comes with the cold weather package package on new cars at least European ones. Those packs usually add some of heated steering wheel, heated rear seats, fuel engine/cabin heater, retractable headlight washers etc.