The all-new GMT900 generation of the Silverado/Sierra arrived in the last quarter of 2006 as a 2007 model. It features a redesigned exterior, interior, frame, and suspension as well as power increases on certain engines. It takes styling cues from the 2007 GMT900 SUVs and the Chevrolet Colorado pickups. Like the GMT900 SUVs, these pickups also have greatly improved aerodynamics over their predecessors like steeply raked windshields and tighter panel gaps which improve fuel economy. The GMT800 models were continued through 2007 badged as "Classic", just as the GMT400 models continued for two years after the GMT800's introduction.