Both vehicles ride on GM's brand-new T1 truck platform, which also currently rests under the GMC Sierra and Chevy Silverado trucks. Both of these new SUVs are larger than their predecessors on the outside and offer more room and comfort on the inside as well. The Tahoe and Yukon are mated to a 10-speed automatic transmission across the board, with three choices of engines. The base variant is a 5.3-liter V8 that cranks out 355 horsepower and 383 lb-ft of torque, and there's also a 6.2-liter V8 cranking out 420 horsepower and 460 lb-ft of torque.
Both carry over from the last generation of Yukon and Tahoe, but the new versions feature smarter cylinder deactivation systems and start/stop systems. The third available engine is the turbo-diesel 3.0-liter inline-six that was first seen on the Sierra and Silverado pickups. It generates 277 horsepower and also nails down a 30 mpg highway EPA fuel economy stat. The Yukon now also features the advanced Active Response 4WD system, using a limited-slip differential that manages the distribution of power and traction. The poised and always track-ready Camaro and Corvette also used Active Response, and it is one quality that can tend to make the Yukon a better choice for off-road adventures.
On both new models, the only strong similarities in the exterior design are the nearly identical top-down and side views. Aside from that, the Tahoe now has a wider grille, and the headlights are much higher up and narrow in comparison to the Yukon. In the rear, the SUVs now have different liftgates and taillights, as opposed to the ones on the outbound models that were the same. Now on the Yukon, every trim except for the top-of-the-line Denali does have the same climate control panel, screen setup, and switchgear on both SUVs.
The Denali has a completely different dashboard setup, where the screen sits lower on the dash with two larger HVAC vents above it. You'll also find a most definite step up in the form of nicer leather and wood materials in the Denali trim. During your January test drive here at Jim Butler Chevy, you'll also notice that both SUV models come with 15-inch head-up displays, active grille shutters, optional air suspensions, and a long list of safety and driver-assist features!