Once you start thinking of colors in connection with foodstuff, it is difficult to stop. When you think of luscious colorful foods, you develop a strong craving that would drive you to your kitchen or to the nearest diner. Foods have this dramatic impact on individuals. And the auto industry wanted to grab hold of this powerful stigma.
Color selection is extremely important. And professional designers don't choose colors that 'look pretty'. Colors have meanings; colors evoke moods. Color has been the subject of many expensive and extensive research projects. Colors can also fool you.