the Mack I plant would switch over from producing the 4.7-liter V8 to the popular 3.6-liter Pentastar engine. Currently, the Pentastar is also produced in Trenton, Michigan, and Saltillo ...

The replacement for the aging Jeep Liberty is expected to debut at next January's Detroit Auto Show, and when it does, a brand-new Pentastar ... in the development of engines.