I have a perfect 2019 Sierra Denali diesel and have no reason to upgrade except that I’m old and can! I Ordered a Denali HD Duramax in white frost and all the options including power running boards, trailer camera and sensors, multi dimensional chrome wheels and the fancy sound system. No goose neck, 5th wheel or HD front springs as I only bumper pull a 10k trailer. MSRP 85,675.00, yikes. Dealer is telling me to expect it in 2 months.