Here are some of the most detailed images of what we think is a new 2021 GMC Yukon XL Denali prototype spied in the wild. This prototype appears to have most production level equipment underneath the camouflage. Here are all the details we have so far.
General Motors has not released official details or specs on the upcoming full-size Chevy Tahoe, Suburban, Yukon, and Escalade SUVs yet.
2021 GMC Yukon Denali
This is a long wheelbase version of the SUV, as can bee seen by the rear door placement in relation to the rear wheel wells. The truck is rumored to share much of its architecture and chassis with the new 2019 GMC Sierra 1500 and Chevy Silverado 1500 trucks. This is the T1 truck problem. There is one big exception, and that is the independent rear suspension (IRS) on the prototype we see here.
IRS has been in many other full-size SUV for many years. This includes the Ford Expedition, Toyota Sequoia, Nissan Armada, and some others. The idea is to offer a more comfortable on-road ride and also potentially make the interior space larger than before by lowering the floor of the cabin.
This prototype is also showing a prominent quad exhaust tip system. It may point to a high performance engine under the hood. Our guess is that the latest 6.2-liter V8 will be offered with at least 420 horsepower. The 10-speed automatic transmission should also be there. What other engine options will the new SUVs have? We do not know for sure, but I hope the new 3.0-liter straight-six Duramax diesel will be one of them. The SUVs may also have a gas/electric hybrid power trail options as well.
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