Auction prices
GMC Sierra auction prices
Final bids of 48K GMC Sierra lots at Copart and IAAI over the last 12 months: the price month by month and by model year, generation and engine.
Average final bid · October 2026
$7,819
-3.4%vs last month
-13.2%vs a year ago
Nov '24Oct '26
- Copart
- $8,097
- IAAI
- $7,389
- Lots
- 3,408
- Lots analyzed
- 48K Copart and IAAI, 12 months
- Average final bid
- $8,317 -3.1% over the 12 months before
- Against GMC
- +57% every GMC averages $5,298
- Highest final bid
- $76,500 IAAI sold 13.8% cheaper on average
Price trend
GMC Sierra average final bid by month
Copart
IAAI
Both
Lots
Lines: the average final bid of the month. Bars: the lots that sold, Copart under IAAI. Hover a month for the numbers.
By model year
What a GMC Sierra model year is worth
CopartIAAI
Average final bid of the last 12 months by the car's model year. Hover a year for the numbers, click it for the lots of that year on sale now.
Generations
By generation
Newest first, 12 months
Engines
By engine
Most sold first, 12 months
Record sales
The most expensive Sierra lots
Highest single final bids of the last 12 months
Compare
Other GMC models
How these numbers are made
- Every figure is a final bid: what a lot sold for at Copart or IAAI in the United States, without auction and delivery fees.
- Sales are counted once a month for every make, model, generation, model year and engine. A month on this page is the month the cars sold.
- "12 months" means the last twelve months shown; a change compares them with the twelve months before, and is shown only when both have enough lots.
- Placeholder bids that some feeds send (such as $999,999) are taken out before averaging. Encar is left out: its prices are dealer asks, not bids.
- Averages describe the market, not a single car: damage, title and mileage move the price of one lot far more than its year.
Last calculated November 3, 2026.