According to Thomas Girst, who has been in charge of the BMW Art Cars project since 2004, the purpose of the project has changed over time: "In the beginning the cars were raced. There wasn't much of a public relations effort around them... Since then, some of the Art Cars have been used in advertisements to show that BMW is a player in the arts. With the Eliason work, part of what we are doing is raising awareness of alternative and renewable energy sources."