 AUSTIN, Texas--BUSINESS WIRE--Hyliion Holdings Corp. NYSE: HYLN Hyliion, a leader in electrified powertrain solutions for Class 8 semi-trucks, recently met with U.S. Secretary of Energy Jennifer Granholm and U.S. Representative Haley Stevens to showcase the Hypertruck ERXTM at development collaborator FEV North Americas Auburn Hills, Michigan facility. The visit was part of a tour to promote the Biden administrations 1 trillion bipartisan infrastructure proposal. Secretary Granholm an 