This is an artwork by Dan Rawlings in the Völklingen Ironworks called "Joyride". It consists of a car and a traffic sign, both with stamped metal.
<a href="//commons.wikimedia.org/wiki/User:FlocciNivis" title="User:FlocciNivis">Flocci Nivis</a>
<span class="int-own-work" lang="en">Own work</span>