Wentzville Assembly

Wentzville Assembly is a General Motors automobile factory at 1500 East Route A in Wentzville, Missouri which opened in 1983. The factory originally built full-size Buick, Oldsmobile and Pontiac sedans, and assumed operations of the previous St. Louis Truck Assembly which had been in operation since 1920 as an original Chevrolet factory before GM acquired the brand. Later in 1996, production shifted to building more than 2.5 million of GM's full-size Chevrolet Express and GMC Savana cargo vans , when the previous generation Chevrolet Van and GMC Vandura were replaced, having been built at Lordstown Assembly in Ohio. It also builds the Chevrolet Colorado and GMC Canyon when the Shreveport Assembly in Louisiana factory was closed, where the Chevrolet S-10, and compact sized Chevrolet Blazer were produced.