The 2027 GMC Sierra 1500 arrives with a completely redesigned exterior and interior, two new V8 engines and considerably more standard equipment. GMC has also simplified the lineup from eight trims to six, removing the SLE and SLT and concentrating more features into the Pro, Elevation, AT4, AT4X, Denali and Denali Ultimate. For Canadian buyers, there is another interesting connection: some of the new sixth-generation V8 engines will be assembled at GM’s St. Catharines, Ontar