The world premiere of the BMW 6 Series Convertible is one of the BMW highlights at the North American International Auto Show (NAIAS) in Detroit. The design is explained by Adrian van Hooydonk, Head of BMW Group Design.<br /><br /><br /><img src="http://ll.broadbandsports.com/images/42690_thumb.jpg" alt="BMW 6 Series. - NAIAS 2011" title="BMW 6 Series. - NAIAS 2011" width="150" height="90" alt="BMW 6 Series. - NAIAS 2011"/>
