it is now a major industrial center, founded in 1974, featuring many automotive industrial parks. several major companies have large operations in ramos arizpe or vicinity, such the general motors ramos arizpe assembly plant (home of the chevy c2, pontiac aztek, buick rendezvous, saturn vue, cadillac srx, saab 9-4x and hhr), chrysler saltillo engine plant (home of the 5.7l v8 hemi engine) and other suppliers such as magna, stabilus, zf sachs and macimex. as of 2016 the plant produces about one third of the firm's full-sized pickups.