Complex sentence: The CD2 vehicles will be replaced for the 2008 model year (with the Ford EUCD platform), with a shortened 2007 production run causing Mazda to halt construction of the current Tribute for North America.
Split into simpler sentences: The CD2 vehicles will be replaced for the 2008 model year with the Ford EUCD platform. A shortened 2007 production run caused Mazda to halt construction of the current Tribute for North America.