Orion Assembly is a 4,300,000 square foot General Motors vehicle assembly plant located in Orion Township, Michigan. The plant currently assembles the Chevrolet Sonic, Chevrolet Bolt and Opel Ampera-e. As of November 2016, the plant has 143 salaried employees and 1,005 hourly employees. It assumed operations of Buick City, and Pontiac Assembly.