Shopping for a new Onyx Black 2019 GMC Yukon XL 4WD 4dr Denali in Mercer County or Cranbury? Coleman Buick GMC in Lawrenceville has just what you are looking for. At Coleman Buick GMC, we are committed to the quality of all of our inventory, whether it's new, used or certified pre-owned.
I have a 2001 Denali XL, so I cannot directly answer your question. I can tell you that when I was test driving these vehicles, there was a noticible performance difference between a Yukon XL/Suburban with the 5.3 engine and the 4.1 axle vs the 3.73 axle.