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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 · October 25, 2026

6M+

Unique vehicles analyzed

as of October 25, 2026

56,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

3.3M new·2.8M used·Listings processed daily

Or explore the market

177 listings found

2005 Mercedes-Benz E-Class E320 CDI

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

2005 Mercedes-Benz E-Class E320 CDI

Greenville, SC

UnscoredInsufficient · 0
$3,750240,489 mi

Greenville, SC

2013 Mercedes-Benz C-Class C300 Luxury

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

2013 Mercedes-Benz C-Class C300 Luxury

Greenville, SC

UnscoredLimited · 5
$7,494139,297 mi

Comparison: 5 similar vehicles

Greenville, SC

2017 Mercedes-Benz GLA-Class GLA250

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

2017 Mercedes-Benz GLA-Class GLA250

Greenville, SC

UnscoredModerate · 45
$8,000145,262 mi

Comparison: 45 similar vehicles

Greenville, SC

2005 Mercedes-Benz SLK-Class SLK350

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

2005 Mercedes-Benz SLK-Class SLK350

Greenville, SC

UnscoredInsufficient · 0
$8,995102,400 mi

Greenville, SC

2014 Mercedes-Benz GLK-Class GLK350

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

2014 Mercedes-Benz GLK-Class GLK350

Greenville, SC

UnscoredLimited · 18
$9,499122,450 mi

Comparison: 18 similar vehicles

Greenville, SC

2015 Mercedes-Benz M-Class ML350

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

2015 Mercedes-Benz M-Class ML350

Greenville, SC

UnscoredModerate · 49
$10,094170,650 mi

Comparison: 49 similar vehicles

Greenville, SC

2014 Mercedes-Benz M-Class ML350

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

2014 Mercedes-Benz M-Class ML350

Greenville, SC

UnscoredModerate · 46
$10,294177,780 mi

Comparison: 46 similar vehicles

Greenville, SC

2013 Mercedes-Benz M-Class ML350

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

2013 Mercedes-Benz M-Class ML350

Greenville, SC

Fair PriceModerate · 45
$10,76792,773 mi

Market: $5,990 – $13,750

Comparison: 45 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 17 days listed (based on current market benchmarks)

Greenville, SC

2015 Mercedes-Benz GLK-Class GLK350

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

2015 Mercedes-Benz GLK-Class GLK350

Greenville, SC

Fair PriceModerate · 34
$13,49880,473 mi

Market: $7,999 – $18,998

Comparison: 34 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 6 days listed (based on current market benchmarks)

Greenville, SC

2006 Mercedes-Benz CLK-Class CLK350

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

2006 Mercedes-Benz CLK-Class CLK350

Greenville, SC

UnscoredInsufficient · 0
$13,888127,631 mi

Greenville, SC

2014 Mercedes-Benz E-Class E350

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

2014 Mercedes-Benz E-Class E350

Greenville, SC

UnscoredModerate · 33
$13,999126,600 mi

Comparison: 33 similar vehicles

Greenville, SC

2017 Mercedes-Benz GLS-Class GLS450

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

2017 Mercedes-Benz GLS-Class GLS450

Greenville, SC

UnscoredInsufficient · 4
$14,498101,827 mi

Comparison: 4 similar vehicles

Greenville, SC

2016 Mercedes-Benz C-Class C300

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

2016 Mercedes-Benz C-Class C300

Greenville, SC

Fair PriceRobust · 88
$15,22092,414 mi

Market: $7,995 – $17,670

Comparison: 88 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 203 days listed (based on current market benchmarks)

Greenville, SC

2018 Mercedes-Benz GLE-Class GLE350

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

2018 Mercedes-Benz GLE-Class GLE350

Greenville, SC

UnscoredLimited · 6
$15,950111,530 mi

Comparison: 6 similar vehicles

Greenville, SC

2017 Mercedes-Benz C-Class C300

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

2017 Mercedes-Benz C-Class C300

Greenville, SC

UnscoredLimited · 8
$15,950101,631 mi

Comparison: 8 similar vehicles

Greenville, SC

2012 Mercedes-Benz SLK-Class SLK350

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

2012 Mercedes-Benz SLK-Class SLK350

Greenville, SC

UnscoredInsufficient · 0
$16,76773,453 mi

Greenville, SC

2019 Mercedes-Benz A-Class A220

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

2019 Mercedes-Benz A-Class A220

Greenville, SC

Fair PriceModerate · 33
$17,18094,221 mi

Market: $13,485 – $19,990

Comparison: 33 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 167 days listed (based on current market benchmarks)

Greenville, SC

2017 Mercedes-Benz C-Class AMG C43

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

2017 Mercedes-Benz C-Class AMG C43

Greenville, SC

Great DealModerate · 22
$17,349115,826 mi

Market: $19,281 – $25,789

Comparison: 22 similar vehicles

Competitively priced ~10% below the typical range compared to similar vehicles · 42 days listed (based on current market benchmarks)

Greenville, SC

2009 Mercedes-Benz SL-Class SL550

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

2009 Mercedes-Benz SL-Class SL550

Greenville, SC

UnscoredInsufficient · 0
$18,76753,816 mi

Greenville, SC

2016 Mercedes-Benz GLE-Class GLE350

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

2016 Mercedes-Benz GLE-Class GLE350

Greenville, SC

Fair PriceRobust · 95
$18,95073,232 mi

Market: $9,999 – $29,800

Comparison: 95 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 3 days listed (based on current market benchmarks)

Greenville, SC

2015 Mercedes-Benz GLK-Class GLK350

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

2015 Mercedes-Benz GLK-Class GLK350

Greenville, SC

UnscoredLimited · 5
$18,99879,893 mi

Comparison: 5 similar vehicles

Greenville, SC

2017 Mercedes-Benz GLS-Class GLS450

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

2017 Mercedes-Benz GLS-Class GLS450

Greenville, SC

UnscoredInsufficient · 4
$19,49894,117 mi

Comparison: 4 similar vehicles

Greenville, SC

2017 Mercedes-Benz C-Class C300

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

2017 Mercedes-Benz C-Class C300

Greenville, SC

UnscoredLimited · 5
$19,50057,584 mi

Comparison: 5 similar vehicles

Greenville, SC

2021 Mercedes-Benz GLC GLC300

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

2021 Mercedes-Benz GLC GLC300

Greenville, SC

Fair PriceRobust · 158
$20,29587,679 mi

Market: $16,221 – $29,995

Comparison: 158 similar vehicles

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

Greenville, SC

2019 Mercedes-Benz C-Class Coupe C300

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

2019 Mercedes-Benz C-Class Coupe C300

Greenville, SC

UnscoredInsufficient · 0
$23,89251,430 mi

Greenville, SC

2023 Mercedes-Benz EQB Base

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

2023 Mercedes-Benz EQB Base

Greenville, SC

UnscoredLimited · 6
$23,89633,980 mi

Comparison: 6 similar vehicles

Greenville, SC

2020 Mercedes-Benz GLE GLE350

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

2020 Mercedes-Benz GLE GLE350

Greenville, SC

UnscoredInsufficient · 3
$23,95094,902 mi

Comparison: 3 similar vehicles

Greenville, SC

2020 Mercedes-Benz GLE GLE350

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

2020 Mercedes-Benz GLE GLE350

Greenville, SC

UnscoredInsufficient · 3
$24,48491,477 mi

Comparison: 3 similar vehicles

Greenville, SC

2022 Mercedes-Benz A-Class A220

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

2022 Mercedes-Benz A-Class A220

Greenville, SC

UnscoredLimited · 9
$26,31833,435 mi

Comparison: 9 similar vehicles

Greenville, SC

2022 Mercedes-Benz GLB Base

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

2022 Mercedes-Benz GLB Base

Greenville, SC

Fair PriceModerate · 33
$26,99844,289 mi

Market: $21,960 – $28,300

Comparison: 33 similar vehicles

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

Greenville, SC

2020 Mercedes-Benz E-Class E350

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

2020 Mercedes-Benz E-Class E350

Greenville, SC

OverpricedRobust · 59
$26,99862,261 mi

Market: $19,300 – $26,939

Comparison: 59 similar vehicles

Greenville, SC

2022 Mercedes-Benz C-Class Sedan C 300

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

2022 Mercedes-Benz C-Class Sedan C 300

Greenville, SC

Fair PriceLimited · 16
$27,95040,861 mi

Market: $24,903 – $37,470

Comparison: 16 similar vehicles

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

Greenville, SC

2024 Mercedes-Benz GLC 300

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

2024 Mercedes-Benz GLC 300

Greenville, SC

UnscoredInsufficient · 4
$28,39862,418 mi

Comparison: 4 similar vehicles

Greenville, SC

2023 Mercedes-Benz GLA Base

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

2023 Mercedes-Benz GLA Base

Greenville, SC

Fair PriceModerate · 34
$28,58621,396 mi

Market: $25,566 – $31,479

Comparison: 34 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 27 days listed (based on current market benchmarks)

Greenville, SC

2023 Mercedes-Benz GLE GLE350

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

2023 Mercedes-Benz GLE GLE350

Greenville, SC

Great DealLimited · 13
$28,99564,230 mi

Market: $32,699 – $41,195

Comparison: 13 similar vehicles

Competitively priced ~11% below the typical range compared to similar vehicles · 67 days listed (based on current market benchmarks)

Greenville, SC

2024 Mercedes-Benz EQB Base

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

2024 Mercedes-Benz EQB Base

Greenville, SC

UnscoredInsufficient · 0
$28,99844,988 mi

Greenville, SC

2023 Mercedes-Benz C-Class Sedan C 300

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

2023 Mercedes-Benz C-Class Sedan C 300

Greenville, SC

UnscoredRobust · 53
$29,48458,654 mi

Comparison: 53 similar vehicles

Greenville, SC

2021 Mercedes-Benz GLE GLE350

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

2021 Mercedes-Benz GLE GLE350

Greenville, SC

UnscoredInsufficient · 4
$29,48492,505 mi

Comparison: 4 similar vehicles

Greenville, SC

2019 Mercedes-Benz E-Class E450

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

2019 Mercedes-Benz E-Class E450

Greenville, SC

UnscoredInsufficient · 3
$31,88941,101 mi

Comparison: 3 similar vehicles

Greenville, SC

2023 Mercedes-Benz C-Class Sedan C 300

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

2023 Mercedes-Benz C-Class Sedan C 300

Greenville, SC

Fair PriceRobust · 62
$31,99834,511 mi

Market: $24,878 – $36,498

Comparison: 62 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 24 days listed (based on current market benchmarks)

Greenville, SC

2023 Mercedes-Benz EQB Base

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

2023 Mercedes-Benz EQB Base

Greenville, SC

Fair PriceLimited · 11
$31,99810,376 mi

Market: $29,169 – $60,550

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 36 days listed (based on current market benchmarks)

Greenville, SC

2022 Mercedes-Benz GLC GLC300

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

2022 Mercedes-Benz GLC GLC300

Greenville, SC

UnscoredInsufficient · 4
$31,99831,681 mi

Comparison: 4 similar vehicles

Greenville, SC

2024 Mercedes-Benz C-Class Sedan C 300

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

2024 Mercedes-Benz C-Class Sedan C 300

Greenville, SC

UnscoredLimited · 5
$32,76717,062 mi

Comparison: 5 similar vehicles

Greenville, SC

2022 Mercedes-Benz GLE GLE350

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

2022 Mercedes-Benz GLE GLE350

Greenville, SC

Fair PriceRobust · 83
$32,99857,634 mi

Market: $31,872 – $39,701

Comparison: 83 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 2 days listed (based on current market benchmarks)

Greenville, SC

2023 Mercedes-Benz EQB Base

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

2023 Mercedes-Benz EQB Base

Greenville, SC

OverpricedModerate · 44
$33,36926,680 mi

Market: $27,158 – $29,593

Comparison: 44 similar vehicles

Priced ~13% above the typical market range for similar vehicles (based on current market benchmarks)

Greenville, SC

2022 Mercedes-Benz GLC GLC300

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

2022 Mercedes-Benz GLC GLC300

Greenville, SC

OverpricedRobust · 112
$33,36928,526 mi

Market: $27,498 – $32,798

Comparison: 112 similar vehicles

Priced ~2% above the typical market range for similar vehicles (based on current market benchmarks)

Greenville, SC

2024 Mercedes-Benz GLA GLA250

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

2024 Mercedes-Benz GLA GLA250

Greenville, SC

UnscoredInsufficient · 0
$33,99824,330 mi

Greenville, SC

2022 Mercedes-Benz C-Class Cabriolet C 300

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

2022 Mercedes-Benz C-Class Cabriolet C 300

Greenville, SC

UnscoredInsufficient · 0
$34,99847,257 mi

Greenville, SC

2020 Mercedes-Benz SLC Roadster SLC300

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

2020 Mercedes-Benz SLC Roadster SLC300

Greenville, SC

UnscoredInsufficient · 0
$34,99829,122 mi

Greenville, SC

2024 Mercedes-Benz C-Class Sedan C 300

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

2024 Mercedes-Benz C-Class Sedan C 300

Greenville, SC

UnscoredInsufficient · 3
$35,48438,180 mi

Comparison: 3 similar vehicles

Greenville, SC

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. Paid RetailVision™ subscribers unlock deeper analytics: per-listing comparable counts, market context drill-downs, inventory health, pricing recommendations, competitive benchmarking, alerts, and exports.
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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