Money GM signs $490M contract under Defense Production Act to build ventilators to fight coronavirus pandemic April 8, 2020April 8, 2020 Phoebe Wall Howard and Nathan Bomey, Detroit Free Press Comments Off on GM signs $490M contract under Defense Production Act to build ventilators to fight coronavirus pandemic General Motors has been awarded a U.S. government contract worth nearly $490 million to build ventilators amid the coronavirus crisis.