Is the $21,880 price on this 2018 GMC Sierra 1500 a good deal?

OAV rates this as a Great Deal because the asking price of $21,880 is below the typical market range for this vehicle.

What is the average price for a 2018 GMC Sierra 1500 in CO?

Based on 309 comparable listings in CO, the average asking price for a 2016-2020 GMC Sierra 1500 is $29,153, with prices ranging from $13,950 to $49,990.

How long does a 2018 GMC Sierra 1500 typically stay on dealer lots?

Comparable GMC Sierra 1500 listings in CO spend an average of 49 days on dealer lots.

Where is this 2018 GMC Sierra 1500 located?

This vehicle is listed in Colorado Springs, CO 80920. VIN: 3GTP1NEC8JG165562. Mileage: 122,783 miles.

What is the fair market price range for this 2018 GMC Sierra 1500?

OAV's Price-to-Market analysis estimates the fair market range is $26,585 to $31,995, based on 12 comparable vehicles.

No Photo Available

Vehicle Details

VIN3GTP1NEC8JG165562

TrimSLT

Exterior ColorBlack

DrivetrainRWD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot71

2018 GMC Sierra 1500

SLT

Great Deal

$21,880122,783 mi

Colorado Springs, CO 80920

Is this 2018 GMC Sierra 1500 SLT a good deal?

OAV verdict: Great Deal

Why: Listed at $21,880, comparable market range $26,585–$31,995, based on 12 comparable listings. Days on lot: 71 days (market average 49 days).

Market price position

$21,880 · $4,705 below market low

$26,585comparable$31,995

Regional range: $26,585 – $31,995
vs. market low: — $4,705 (18% below)
Comparable vehicles: 12

Market Retail Price (MRP™)

$29,290

This vehicle $21,880 · $7,410 (25%) below MRP

MRP™ is the midpoint of the comparable market range — the representative price the market is asking for similar vehicles. How MRP works.

True Retail Value (TRV™)

$26,169

This vehicle $21,880 · $4,289 (16%) below TRV

TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-07-24) — an estimate, not an appraisal. How TRV works.

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 13–59 days.

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges are rebuilt from the market snapshot shown above.

Local Range$26,585 – $31,995

Regional Range$21,640 – $31,995

Mike Maroone Chevrolet North

Colorado Springs, CO

OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

View all vehicles from mike maroone chevrolet north →

Request availability and out-the-door price

OAV will route your inquiry to Mike Maroone Chevrolet North for current availability of this 2018 GMC Sierra 1500 SLT and an out-the-door price quote (taxes, fees, addons included).

OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

About This 2018 GMC Sierra 1500

Listing updated: Jul 24, 2026

Listed by a franchise dealer in Colorado Springs, CO · On lot for 71 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 SLT is listed at $21,880 by mike maroone chevrolet north in Colorado Springs, CO 80920. It has 122,783 miles on the odometer. The exterior color is Black. It features a RWD drivetrain with a 5.3L V8 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as a Great Deal — priced below market value. Based on 12 similar vehicles in the Colorado Springs market, the estimated market range is $26,585 to $31,995. The local market range in CO is $26,585 to $31,995.

This vehicle has been on the lot for 71 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).

Market context

This listing is part of OAV's broader Colorado Springs, CO trucks market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.

How this deal is rated

OAV compares this 2018 GMC Sierra 1500 against similar vehicles currently available in the local and regional market — same make, model, and year range, filtered for comparable mileage. Based on where this listing falls in that comparable set, it is rated:

Great Deal — priced below the typical range for comparable vehicles.
Fair Price — priced within the expected range for comparable vehicles.
Overpriced — priced above the typical range for comparable vehicles.

Listings show OAV's PTM-derived deal quality and live market context. OAV-claimed dealers manage their listing profile and route buyer inquiries directly. Paid OAV partners surface additional verification signals.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in Colorado Springs, CO, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP1NEC8JG165562 can be independently verified via the U.S. Department of Transportation's NHTSA VIN decoder, and safety recalls at NHTSA's recall database.

Vehicle attributes (year, make, model, trim, mileage, location) are standardized using OAV's patented methodology (U.S. Patent No. 12,236,477), which normalizes naming conventions and deduplicates cross-listed inventory across the dealership network. Listing data is processed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2018 GMC Sierra 1500 Market in CO

Comparable Vehicles

309

Average Price

$29,153

Price Range

$13,950–$49,990

Avg Days on Lot

Based on 309 comparable 2016-2020 GMC Sierra 1500 listings in CO, the average asking price is $29,153. This listing at $21,880 is $7,273 below average (25% below market). Comparable prices in CO range from $13,950 to $49,990. Similar vehicles spend an average of 49 days on dealer lots in this market.