Automotive Design and Production

MAY 2014

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39 p The capacious cabin of the Suburban ofers 121.1-ft 3 behind the frst row seats. The second and third rows fold fat. models, with the exception of the Denali trims for the Yukons, is the 5.3-liter EcoTec3 engine. The aluminum engine (block and heads) produces 355 hp @ 5,600 rpm and 383 lb-ft of torque @ 4,100 rpm. Thanks to features including direct injection, cylinder deactivation, continuously variable valve timing, and an advanced combustion system, the engine returns an estimated 16 city/23 highway miles per gallon in a two- wheel-drive vehicle, 16/22 mpg in a four-wheel-drive SUV. The Yukon Denali and Yukon Denali XL come with a 6.2-liter EcoTec3 engine. This engine produces 420 hp @ 5,600 rpm and 460 lb-ft of torque @ 4,100 rpm. It is estimated to provide 15/21 mpg for two-wheel-drive and 14/21 mpg for four-wheel-drive. Both of the engines are mated to a HydraMatic 6L80 six-speed automatic transmission. A word about the four diferent SUVs. From a dimensional point of view, there are really two sets of two, with the Tahoe and the Yukon having the same wheelbase and the Suburban and the Yukon XL sharing the same. But while it would take a superhero eye or a spec sheet to discern the diferences, the Tahoe is 204 in. long and the Yukon 20.9 in. long; the Suburban is 224.4 in. long and the Yukon XL 224.3 in., with diferences in the front fascias accounting for the 0.1-in. diference. Nowadays, it is de rigueur for vehicles of all sizes to be ftted with various sensors, most of which are on the exterior of the vehicle. The previous- gen full-size SUVs have a rear vision camera, rear park assist, and side blind-zone alert. The new models are available with many more sensors: radar, ultrasonic, and cameras. They ofer forward collision alert, adaptive p Bryan Priebe, lead interior designer, Full Size Trucks, says that the new SUVs gave the interior design team the opportunity to deploy an array of top-quality materials, including leather and aluminum, as well as to provide advanced interface technologies for the driver. 39 0514ADP FEATURE SUV.indd 39 4/22/14 2:34 PM

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