These results were shocking even to Car and Driver, who typically anticipate modest gains from generation to generation – not substantial improvements like this. For comparison, the 1999 Chevrolet Tahoe stopped in 248 feet during testing. The 2016 Cadillac Escalade tested at a little over 202 ft. And now, just a few short years later, we see stopping distances under 184 ft.
So why has GM been able to make huge strides in an area where other manufacturers have struggled? Car and Driver usually attributes stopping distance success to tire quality, but that’s not the only factor at play. GM says tire tweaks have helped, but improvements can also be ascribed to a new independent rear suspension system and improvements made to braking systems over the years.