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U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV

The Automotive Answer Engine

Every car has an answer. We hold the evidence.

Ask about a VIN, price, or market. OAV returns an independent, snapshot-dated answer and the market evidence behind it — a verdict where the evidence supports one, and the evidence itself where it doesn't.

Found a car anywhere? Paste the VIN — OAV resolves it against the supported comparable range, drawn from millions of dealer-advertised listings. Dealers can't pay to change a verdict.

OAV.io is an independent automotive market-evidence platform. It evaluates asking prices against comparable listings and publishes a Price-to-Market verdict when the evidence supports one. Days-on-lot and sell-through from similar vehicles are separate demand evidence, never inputs to the Price-to-Market verdict.

Market snapshot · November 3, 2026

6.8M+

Vehicles tracked nationwide

6M+ searchable on oav.io

60,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

New and used·Listings processed daily

Or explore the market

361 listings found

2004 GMC Sierra 2500HD Work Truck

Image from the dealer's site. OAV does not own, control, or store dealer images.

2004 GMC Sierra 2500HD Work Truck

Slidell, LA

UnscoredInsufficient · 0
$5,995272,725 mi

Slidell, LA

2007 GMC Sierra

Image from the dealer's site. OAV does not own, control, or store dealer images.

2007 GMC Sierra

Slidell, LA

UnscoredInsufficient · 0
$11,995176,130 mi

Slidell, LA

2015 GMC Sierra 1500 SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2015 GMC Sierra 1500 SLE

Slidell, LA

Unscored
$12,900194,617 mi

Comparison: 13 similar vehicles

Slidell, LA

2020 GMC Terrain SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2020 GMC Terrain SLE

Slidell, LA

Unscored
$14,99585,177 mi

Comparison: 5 similar vehicles

Slidell, LA

2018 GMC Terrain SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2018 GMC Terrain SLE

Slidell, LA

Fair PriceModerate · 24
$15,32672,968 mi

Market: $7,415 – $17,495

Comparison: 24 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 4 days listed (based on current market benchmarks)

Slidell, LA

2018 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2018 GMC Sierra 1500 SLT

Slidell, LA

Unscored
$15,990221,108 mi

Comparison: 27 similar vehicles

Slidell, LA

2024 GMC Terrain SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Terrain SLE

Slidell, LA

Fair PriceLimited · 16
$19,34760,422 mi

Market: $19,298 – $21,415

Comparison: 16 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 40 days listed (based on current market benchmarks)

Slidell, LA

2023 GMC Terrain SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 GMC Terrain SLE

Slidell, LA

UnscoredInsufficient · 0
$19,94246,165 mi

Slidell, LA

2024 GMC Terrain SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Terrain SLE

Slidell, LA

Unscored
$20,61153,536 mi

Comparison: 5 similar vehicles

Slidell, LA

2023 GMC Acadia SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 GMC Acadia SLE

Slidell, LA

Fair PriceLimited · 18
$24,86441,491 mi

Market: $24,877 – $26,899

Comparison: 18 similar vehicles

Fairly priced — priced near the comparable range, but not far enough below it to qualify as a Great Deal · 47 days listed (based on current market benchmarks)

Slidell, LA

2024 GMC Terrain SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Terrain SLE

Slidell, LA

UnscoredInsufficient · 3
$25,20018,572 mi

Comparison: 3 similar vehicles

Slidell, LA

2015 GMC Sierra 2500HD SLE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2015 GMC Sierra 2500HD SLE

Slidell, LA

UnscoredInsufficient · 0
$25,995150,000 mi

Slidell, LA

2015 GMC Yukon Denali

Image from the dealer's site. OAV does not own, control, or store dealer images.

2015 GMC Yukon Denali

Slidell, LA

UnscoredInsufficient · 0
$26,59948,230 mi

Slidell, LA

2018 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2018 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 24
$26,888113,040 mi

Market: $15,990 – $29,312

Comparison: 24 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 9 days listed (based on current market benchmarks)

Slidell, LA

2024 GMC Canyon AT4

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Canyon AT4

Slidell, LA

UnscoredInsufficient · 0
$28,43575,090 mi

Slidell, LA

2019 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2019 GMC Sierra 1500 SLT

Slidell, LA

Unscored
$28,839114,090 mi

Comparison: 8 similar vehicles

Slidell, LA

2019 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2019 GMC Sierra 1500 SLT

Slidell, LA

Unscored
$29,88885,887 mi

Comparison: 8 similar vehicles

Slidell, LA

2023 GMC Yukon XL SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 GMC Yukon XL SLT

Slidell, LA

UnscoredInsufficient · 3
$30,800177,865 mi

Comparison: 3 similar vehicles

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$31,290Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 93 days listed (based on current market benchmarks)

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$31,290Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 89 days listed (based on current market benchmarks)

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$31,290Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 89 days listed (based on current market benchmarks)

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$31,440Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 95 days listed (based on current market benchmarks)

Slidell, LA

2021 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 35
$31,98875,984 mi

Market: $25,075 – $37,888

Comparison: 35 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 37 days listed (based on current market benchmarks)

Slidell, LA

2023 GMC Sierra 1500 Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 GMC Sierra 1500 Elevation

Slidell, LA

UnscoredInsufficient · 3
$32,80056,274 mi

Comparison: 3 similar vehicles

Slidell, LA

2023 GMC Canyon AT4

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 GMC Canyon AT4

Slidell, LA

UnscoredInsufficient · 3
$32,98883,986 mi

Comparison: 3 similar vehicles

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$33,210Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 89 days listed (based on current market benchmarks)

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$33,210Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 89 days listed (based on current market benchmarks)

Slidell, LA

2021 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 35
$33,995103,322 mi

Market: $25,075 – $37,888

Comparison: 35 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 139 days listed (based on current market benchmarks)

Slidell, LA

2021 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 35
$33,99578,217 mi

Market: $25,075 – $37,888

Comparison: 35 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 276 days listed (based on current market benchmarks)

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$34,615Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 69 days listed (based on current market benchmarks)

Slidell, LA

2021 GMC Sierra 1500 Denali

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 GMC Sierra 1500 Denali

Slidell, LA

UnscoredInsufficient · 3
$34,80085,681 mi

Comparison: 3 similar vehicles

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$34,8802,381 mi

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 21 days listed (based on current market benchmarks)

Slidell, LA

2027 GMC Terrain Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 GMC Terrain Elevation

Slidell, LA

Fair PriceRobust · 67
$35,160Mileage not verified

Market: $31,243 – $49,479

Comparison: 67 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 40 days listed (based on current market benchmarks)

Slidell, LA

2021 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 35
$35,98869,904 mi

Market: $25,075 – $37,888

Comparison: 35 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 202 days listed (based on current market benchmarks)

Slidell, LA

2022 GMC Sierra 1500 AT4

Image from the dealer's site. OAV does not own, control, or store dealer images.

2022 GMC Sierra 1500 AT4

Slidell, LA

Fair PriceModerate · 44
$36,112103,362 mi

Market: $34,490 – $49,999

Comparison: 44 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 44 days listed (based on current market benchmarks)

Slidell, LA

2024 GMC Canyon Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Canyon Elevation

Slidell, LA

Unscored
$36,30011,230 mi

Comparison: 5 similar vehicles

Slidell, LA

2022 GMC Sierra 1500 Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2022 GMC Sierra 1500 Elevation

Slidell, LA

UnscoredInsufficient · 0
$36,88041,301 mi

Slidell, LA

2022 GMC Sierra 1500 Limited SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2022 GMC Sierra 1500 Limited SLT

Slidell, LA

OverpricedLimited · 10
$37,10098,718 mi

Market: $23,990 – $35,869

Comparison: 10 similar vehicles

Priced ~3% above the typical market range for similar vehicles (based on current market benchmarks)

Slidell, LA

2024 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 21
$37,20077,251 mi

Market: $36,600 – $43,986

Comparison: 21 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 87 days listed (based on current market benchmarks)

Slidell, LA

2021 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 GMC Sierra 1500 SLT

Slidell, LA

OverpricedModerate · 35
$37,88871,828 mi

Market: $25,075 – $36,175

Comparison: 35 similar vehicles

Priced ~5% above the typical market range for similar vehicles (based on current market benchmarks)

Slidell, LA

2024 GMC Sierra 1500 Elevation

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Sierra 1500 Elevation

Slidell, LA

UnscoredInsufficient · 3
$38,78835,897 mi

Comparison: 3 similar vehicles

Slidell, LA

2026 GMC Sierra 1500 Pro

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 GMC Sierra 1500 Pro

Slidell, LA

Fair PriceRobust · 91
$39,345Mileage not verified

Market: $34,108 – $53,149

Comparison: 91 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 107 days listed (based on current market benchmarks)

Slidell, LA

2023 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 20
$39,98882,925 mi

Market: $35,917 – $41,473

Comparison: 20 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 20 days listed (based on current market benchmarks)

Slidell, LA

2023 GMC Yukon SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 GMC Yukon SLT

Slidell, LA

Unscored
$39,99581,251 mi

Comparison: 8 similar vehicles

Slidell, LA

2020 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2020 GMC Sierra 1500 SLT

Slidell, LA

UnscoredInsufficient · 0
$39,99822,478 mi

Slidell, LA

2022 GMC Yukon Denali

Image from the dealer's site. OAV does not own, control, or store dealer images.

2022 GMC Yukon Denali

Slidell, LA

UnscoredInsufficient · 3
$40,300101,662 mi

Comparison: 3 similar vehicles

Slidell, LA

2024 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Sierra 1500 SLT

Slidell, LA

Unscored
$40,49848,575 mi

Comparison: 7 similar vehicles

Slidell, LA

2021 GMC Sierra 1500 Denali

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 GMC Sierra 1500 Denali

Slidell, LA

UnscoredInsufficient · 0
$40,77541,117 mi

Slidell, LA

2024 GMC Sierra 1500 SLT

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 GMC Sierra 1500 SLT

Slidell, LA

Fair PriceModerate · 21
$41,20073,698 mi

Market: $36,600 – $43,986

Comparison: 21 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 31 days listed (based on current market benchmarks)

Slidell, LA

2026 GMC Sierra 1500 Pro

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 GMC Sierra 1500 Pro

Slidell, LA

Fair PriceRobust · 91
$41,540Mileage not verified

Market: $34,108 – $53,149

Comparison: 91 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 109 days listed (based on current market benchmarks)

Slidell, LA

Trust signal layer

Demand-Verified Deals™

The Demand-Verified badge is sell-through evidence — the matched cohort of similar vehicles is selling faster than its market baseline, and this listing is still within the cohort’s typical selling window. It is separate from OAV’s price verdict. A Demand-Verified Deal is a listing that carries the badge and is also rated Great Deal (priced below the comparable-range floor by at least OAV's minimum-gap margin). The Deal is the intersection of the two signals. Each Demand-Verified listing shows its cohort’s typical sell-time, its days-on-lot, and a comparable count. Listings without sufficient, fresh cohort coverage get no label, and the section hides itself when none on a page qualify, so the signal stays honest.

Current status: the Demand-Verified badge is withheld on every listing while OAV re-validates the sell-through claim behind it, so no Top Demand-Verified Deals section is showing anywhere on the site right now. The sell-through evidence itself still appears on listings where a cohort supports it, and Price-to-Market verdicts are unaffected. The badge returns only if the re-validation confirms the claim.

See the full Demand-Verified Deals methodology for the labeling rules and examples.

Example market pages

OAV answers these questions

What are the best priced vehicles?
Great Deal means priced below the comparable-range floor by at least OAV's minimum-gap margin; Fair Price means priced within the comparable range, or below the floor by less than that margin.
Which vehicles are priced below market?
Vehicles rated Great Deal are priced below the comparable-range floor by at least OAV's minimum-gap margin. Each one links to its vehicle page.
Which listings are Demand-Verified?
A listing is Demand-Verified when the matched sold cohort of similar vehicles is moving faster than its market baseline, the cohort meets minimum-sample and freshness requirements, and this specific listing has not aged beyond the cohort's typical selling window. It is sell-through evidence about demand, and is separate from OAV's price-to-market verdict.
Which vehicles are priced below comparable listings?
OAV's Price-to-Market analysis compares a listing's asking price against similar cars, using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it. Mileage is never used to select comparables or adjust their prices. OAV withholds a verdict when mileage looks unreliable, or when higher-than-typical mileage, not a market discount, better explains a lower price. Over 120,000 miles, OAV still publishes Overpriced but withholds Great Deal and Fair Price: comparable cars usually have fewer miles, which can make those two verdicts misleading. Where OAV publishes a verdict, a listing priced below the comparable-range floor by at least OAV's minimum-gap margin is rated Great Deal; one priced within the comparable range, or below the floor by less than that margin, is Fair Price.

How OAV.io compares with CarGurus, Cars.com and TrueCar

  • Carfax provides vehicle history reports and lists used cars for sale, showing how each price compares to its CARFAX Value.
  • CarGurus gives listings Deal Ratings based on its Instant Market Value (IMV), its estimate of a fair market price for a specific vehicle in a specific market.
  • Cars.com shows deal badges that compare a listing's price to similar vehicles in the same market.
  • Edmunds publishes car reviews and provides deal ratings on new and used listings.
  • iSeeCars analyzes and scores every listing and compares each price with the market price of similar vehicles for sale.
  • J.D. Power, which acquired the NADA Used Car Guide and NADAguides.com, publishes vehicle pricing and values.
  • TrueCar shows what others in your area paid for similar vehicles and connects shoppers with its Certified Dealers.

OAV.io is not a marketplace and does not sell cars. It helps shoppers find new and used cars at dealerships and evaluates each listing VIN by VIN against comparable listings, showing the comparable count, market range and as-of date for each rated listing. Its rating thresholds are published, thin evidence means Unscored, and dealers cannot pay to change an OAV.io rating, its eligibility or a listing's placement on OAV.io. Ratings are not guarantees of price or value, nor statements about a dealer in general.

How OAV.io compares

CarGurus, Instant Market Value, Deal Ratings, Cars.com, iSeeCars, TrueCar, TrueCar Price Graph, Edmunds, J.D. Power, NADA Used Car Guide, NADAguides, Carfax and CARFAX Value are trademarks of their respective owners. OAV.io is not affiliated with, sponsored by or endorsed by any of them.

How OAV works

How does OAV rate vehicle deals?
OAV compares a listing's asking price against similar vehicles currently for sale and publishes a Price-to-Market verdict only when the evidence supports one. OAV rates scored listings as Great Deal (priced below the comparable-range floor by at least OAV's minimum-gap margin), Fair Price (priced within the comparable range, or below the floor by less than that margin), or Overpriced (priced above the comparable range). Listings OAV cannot score on the available evidence are shown as Unscored rather than receiving an unsupported verdict. Ratings are recomputed as OAV processes new inventory data through its daily pipeline; each page shows the market snapshot used for its analysis.
How fresh is OAV's vehicle data?
OAV processes inventory, pricing, and days-on-lot data daily from the dealer source. Every market page and VIN page carries a “Market snapshot” timestamp showing the snapshot date the page was built from, so the exact data vintage is always visible.
Does OAV include days on lot?
Yes. OAV records days-on-lot from the dealer feed when the feed supplies it. Days-on-lot is a separate demand signal, never an input to the Price-to-Market verdict.
Are OAV dealers verified?
Dealer profiles include public market summaries from live inventory data — make mix, deal mix, average days on lot, market position. Claimed OAV dealers route inbound buyer inquiries and control verified contact information.
What technology powers OAV's deal ratings?
Certain vehicle market-standardization methods are covered by U.S. Patent No. 12,236,477; the Price-to-Market verdict method is the subject of a pending U.S. patent application. The standardization technology normalizes naming conventions and deduplicates cross-listed inventory across the dealership network, so every comparable-market calculation is drawn from a clean, unified data set.

Related questions

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