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Forreston Car Care · Forreston, IL

2021 GMC Sierra 1500 4WD Crew Cab Short Box SLT

108,352 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021
MakeGMC
ModelSierra
Trim1500 4WD Crew Cab Short Box SLT
VIN
Stock number818
Mileage108,352 miles
BodyPickup
Engine5.3L 8-cyl
Cylinders8
Displacement5.3L
Transmission8-speed automatic
Drivetrain4WD
FuelGasoline
MPG14 city / 20 hwy
ExteriorWhite Frost Tricoat
InteriorJet Black

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 250 miles of Forreston, Illinois
Asking price$29,900Dealer asking price · 108,352 mi
Market value$34,995Market value · based on 8 comparable cars
vs. market-14.6%Not rated · prices vary widely

Where this price sits

Among the lowest-priced · 75% of 8 similar listings ask more than this car.

$23,900lowest$39,995highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

-14.6%
−25%Market value+25%
Not rated · comparable prices vary too widely$5,095 below the market value of $34,995

Price range

$29,900
$23,900$39,995
3rd lowest price of 9 similar listings within 250 milesTick marks the market value · range of 8 similar listings

AutosXchange Insights

  • Compared with 8 used 2020–2022 GMC Sierra 1500 SLT listings within 250 mi.
  • Priced $5,095 below the market value of 8 comparable cars.
  • 3rd lowest price of 9 similar listings within 250 miles.
  • Has about 35,000 more miles than similar listings.
  • About 18,059 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 818 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 9, 2026. No price change at this dealership since Nov 9 ($29,900).

$29.7k$29.8k$29.9k$30.0k$30.1kNov 9Nov 10Nov 11Nov 12

AutosXchange Intel Hub: Price changes for this model in Illinois · This model in the Intel Hub · Market movers in Illinois

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2020–2022 Sierra 1500 SLT · used · any miles · within 250 miles of Forreston, Illinois. All 8 comparable cars for sale, nearest first.

AutosXchange Intel uses current dealer-advertised asking prices, not completed sales or appraisals. It compares the same trim and condition (new or used) where at least three are listed nationwide, and adjusts the expected price for mileage; it is not adjusted for options, condition or accident history. Similar listings are searched within 50, 100 and 250 miles of the dealer first, then the dealer's state, then nationwide. The left gauge spans ±25% of the expected price. How AutosXchange price analysis works

More GMC Sierra 1500 and other GMC near Forreston

All GMC models, all years and trims. Nearest first.

2022 GMC Sierra 1500 Elevation vehicle photo2022 GMC Sierra 1500 Elevation35,742 miles · Forreston Car Care · Forreston, IL · 0 mi away$41,9002019 GMC Terrain SLT vehicle photo2019 GMC Terrain SLT93,107 miles · Forreston Car Care · Forreston, IL · 0 mi away$17,9002015 GMC Terrain Denali vehicle photo2015 GMC Terrain Denali84,316 miles · Forreston Car Care · Forreston, IL · 0 mi away$14,500