The 2015 Chevy Colorado is shown -- under wraps -- with its full-sized Chevy siblings in this teaser photo released by GM. GM says that it will unveil the new Colorado in Los Angeles on Wednesday. Photo credit: General Motors Co.

Not long ago, a buyer seeking a mid-sized pickup had several strong choices. But Ford (NYSE:F) and General Motors (NYSE:GM) discontinued their entries, leaving the market to Toyota (NYSE:TM) and Nissan (OTC:NSANY) while they focused their efforts on full-sized pickups. 

But now, GM's coming back. The General says that it will unveil its all-new 2015 Chevy Colorado on Wednesday. As Motley Fool contributor John Rosevear reports in this video, the Colorado is aimed straight at Toyota's class-leading Tacoma -- and it could find a substantial market.