What’s new about the Sierra depends on what you buy: The SLT trim gets the same interior as the new Yukon, while WT and SLE trims feature a “Pure Pickup” interior. The Pure Pickup variant seems able to hide scuffs and dirt better than the SLT trim and offers bigger control switches, door handles and a dual glove box. Other additions include a lockable in-seat storage bin built into the 40/20/40-split bench. All Sierra models enjoy more room inside, including more storage capacity. Design changes include what GM refers to as a “low and forward” instrument panel, which really did improve visibility and usability during our test drive. Entry to the rear seat of Extended Cab models is eased with doors that open 170 degrees.