The Cobo Center, home to the Detroit Auto Show, provides approximately $600 million annually to the local economies, with much of that money coming from the show itself. With that in mind, state and local officials are working on a plan to spend $595 million to expand and renovate the center. This change would include adding an additional 120,000 square feet, which would create room for even more automakers (C'mon Tata, show us your Nanos). We're supportive of the idea, if only to create space for more surprise Chinese test drives and booth babes. [AP via MLive]