Today GMC introduced the next-generation of its flagship SUVs, the 2021 Yukon and Yukon XL, enhanced by offering class-leading technology and elevated by precisely-engineered capability. "GMC Yukon is the full-size premium SUV that's made to be used," said Duncan Aldred, vice president of Global Buick and GMC. "The new Yukon delivers what customers value most - premium features, purposeful technology and all-terrain capability." The 2021 Yukon lineup is headlined by an all-new and more upscale Denali...