Today, advertising agencies work diligently in order to make products more attractive, delicious or desirable. For example, at BMW, as many as 36 engineers focus on making sure that their cars’ doors close with a pleasant sound. But here we’re not talking about cars. We are not here to talk about care today, but actually we’re going to focus on some of the biggest advertisers of all — fast food. To create a picture of seemingly delicious food, famous food brands work just as hard as car manufacturers.