Review: 2022 GMC Sierra 1500 AT4X brings more luxury but less capability to the off-road game

That sound you just heard was the average transaction price going up on the highest-end GMC Sierras. The 2022 GMC Sierra 1500 lineup has been refreshed with a better, finally competitive, interior and two new expensive additions to the lineup: the lux Denali Ultimate and off-road focused AT4X. The latter cribs some, but not all, the bits from the…