Test Track guests enter an all-new, interactive pre-show area that includes concept cars like the Miray roadster and the Chevrolet EN-V, as well as dynamic media displays that include models and sketches of vehicle design possibilities.

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Peddling certain products or services on a social-media platform may be challenging for businesses, says Yogesh V.

WSJ: Merchants Push Sales Through Social Media

Shares of Vivendi Universal (nyse: V - news - people)--another merger-mad media company--have fared almost as poorly.

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