Has the Detroit Motor Show Lost its Mojo?

With the U.S auto market catching momentum in 2010, most of us had high expectations for this year's edition of the North American International Auto Show. And while Porsche's comeback to the show after a four-year hiatus was a welcome addition, the absence of key players such as Nissan, Infiniti and Mazda continues to worry. But even the companies that did take part in the show didn't really