Bogdan; What do you think, this is the 50's? lol just kidding. With the way cars are built today they have everything you need to keep all your buds toasty warm, and keep the windows clear. Im not sure about the weather where you are but right now its 4 degrees F in chicago, and my 05 Prius keeps me nice and warm. Obviously dont expext to get the same milage as if it were 70 F outside but im still gettting better than my 04 Pacifica so im plenty happy. Also any car has to warm up a bit before the defrosters will crank out the heat. good luck Dean