How to save a $1.2 million loan by changing the wallpaper of your car

The wall wallpaper of an Audi S4 can change depending on the season, and some people have made a living from it.

Photographer Kevin Smith and car dealer John Clements have developed a technique that helps owners of luxury cars like the Audi S5 and the BMW X3 to keep their homes looking like new and to add a dash of flair to their homes.

The Wall St. Journal explains how it works.