Inspection report
2026 GMC Sierra 2500HD Denali Ultimate
Castle Rock, CO · Castle Rock Chevrolet GMC
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Asking price
$86,998
324 mi
Estimated value
$129,429
MotorRank deterministic model
You save
$42,431
32.8% of est. value
AI value verdict
Deal score 96/100Legendary
“$42,431 below market · Legendary”
Asking $86,998 vs estimated $129,429 for 2026 GMC Sierra 2500HD Denali Ultimate at 324 mi (Legendary).
Vehicle details
Denali Ultimate
Body
Truck
Engine
6.6L 8Cyl Diesel
Transmission
Automatic
Drivetrain
4WD
Fuel
Diesel
Exterior
Onyx Black
Interior
Alpine Umber premium leather
Condition
CPO
No accidents reported0 owners
Cost of ownership
Cost to own
5-yr estimate · 2026 GMC Sierra 2500HDMonthly cash out
$2,212
5-yr running
$36,999
Per mile
$0.73
Money out per month: recurring costs + loan payment. Doesn't include depreciation — see Resale below.
Annual miles
Ownership horizon
Driver age
State
1 · Monthly costWhat leaves your account every month
Yearly cash-out breakdown
Estimates use state averages — your actual costs depend on driving history, exact zip, and insurer.