It was a GM sweep on the streets of Detroit, with the Whelen Cadillac taking the overall victory and the Pratt Miller Corvette claiming the GTD PRO class win. The race ran relatively clean until a late-race caution transformed the closing stages into an old-school street fight, with aggressive battles throughout the field. GTP It was domination from green flag to checkered flag for the #31 Whelen Cadillac. The team topped both practice sessions, claimed pole position, and bui