Fire truck at GM Technical Center in Warren, Michigan. Designed by world-renowned architect Eero Saarinen, the Technical Center is a premier example of the International style of architecture. The center was first opened in the early 1950s and is currently undergoing a major renovation that includes a world-class computer network, state-of-the-art engineering facilities, and a new climatic wind tunnel. Official GM Photograph from the General Motors Media Archives of a 1954 GMC Cab Chassis.