GMC announced the all-new 2015 Yukon, XL and flagship Denali models will deliver greater capability and refinement, with more power, new fold-flat rear seats and a quieter interior. And thanks to a new family of advanced EcoTec3 engines, the lineup is expected to deliver the segment’s best V-8 fuel economy.

Bold styling and advanced technologies – including new safety and security technologies – support Yukon’s greater capability, while a more comprehensive list of standard features and enhanced infotainment options are designed to broaden the appeal of one of the industry’s most-popular full-size SUV lineups. Combined Yukon/Yukon XL and Denali sales were up 24 percent for the eight months of 2013.

“We’ve engineered the Yukon and Yukon XL from the ground up, building on a strong legacy of capability to take them to the top of the segment with exceptional refinement and purposeful technology,” said Tony DiSalle, vice president of GMC Marketing. “And when it comes to the tasks people rely on a full-size SUV for, they do it better than ever – and with more style.”

Yukon and Yukon XL share design, architectural and powertrain elements, but Yukon XL has an approximately 14-inch longer wheelbase and is approximately 20 inches longer overall, providing greater legroom for third-row passengers and almost twice the cargo room behind the third-row seat.

“Although they are based on a similar architecture, Yukon and Yukon XL are distinctive products that appeal to different customers,” said DiSalle. “Versatility and spaciousness are valued by customers for both vehicles, but the Yukon XL is the choice for families with more children and those with lifestyles that require its unique combination of passenger- and cargo-hauling capabilities. In fact, Yukon XL owners are more than twice as likely to transport passengers daily in the third-row seat.”