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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 20, 2026

6M+

Unique vehicles analyzed

as of October 20, 2026

56,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

3.3M new·2.7M used·Listings processed daily

Or explore the market

570 listings found

2015 Nissan LEAF S

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

2015 Nissan LEAF S

Windham, CT

UnscoredInsufficient · 4
$4,00047,439 mi

Comparison: 4 similar vehicles

Windham, CT

2017 Chevrolet Bolt EV Premier

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

2017 Chevrolet Bolt EV Premier

Lincoln, RI

UnscoredInsufficient · 0
$10,199110,574 mi

Lincoln, RI

2019 Nissan Leaf SL Plus

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

2019 Nissan Leaf SL Plus

Stonington, CT

UnscoredInsufficient · 0
$12,97472,865 mi

Stonington, CT

2018 Chevrolet Bolt EV Premier

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

2018 Chevrolet Bolt EV Premier

North Kingstown, RI

UnscoredInsufficient · 0
$12,99966,658 mi

North Kingstown, RI

2021 Nissan Leaf S

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

2021 Nissan Leaf S

Attleboro, MA

UnscoredInsufficient · 0
$14,90023,820 mi

Attleboro, MA

2016 Tesla Model X 75D

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

2016 Tesla Model X 75D

Warwick, RI

UnscoredInsufficient · 3
$15,415160,765 mi

Comparison: 3 similar vehicles

Warwick, RI

2018 Tesla Model 3 Long Range

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

2018 Tesla Model 3 Long Range

Attleboro, MA

UnscoredInsufficient · 3
$15,495105,537 mi

Comparison: 3 similar vehicles

Attleboro, MA

2023 Nissan Leaf SV Plus

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

2023 Nissan Leaf SV Plus

Old Saybrook, CT

UnscoredInsufficient · 0
$16,53779,185 mi

Old Saybrook, CT

2021 Ford Mustang Mach-E Select AWD

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

2021 Ford Mustang Mach-E Select AWD

Glastonbury, CT

Fair PriceLimited · 10
$17,39884,371 mi

Market: $17,394 – $24,093

Comparison: 10 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 115 days listed (based on current market benchmarks)

Glastonbury, CT

2024 Hyundai IONIQ 5 SE

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

2024 Hyundai IONIQ 5 SE

Attleboro, MA

UnscoredInsufficient · 0
$18,19761,153 mi

Attleboro, MA

2019 Tesla Model 3 Base

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

2019 Tesla Model 3 Base

North Attleborough, MA

UnscoredLimited · 10
$18,294126,541 mi

Comparison: 10 similar vehicles

North Attleborough, MA

2023 Kia EV6 Wind

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

2023 Kia EV6 Wind

North Attleborough, MA

UnscoredInsufficient · 0
$18,384124,247 mi

North Attleborough, MA

2022 Chevrolet Bolt EUV LT

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

2022 Chevrolet Bolt EUV LT

North Kingstown, RI

UnscoredLimited · 7
$18,91540,385 mi

Comparison: 7 similar vehicles

North Kingstown, RI

2025 Hyundai Kona EV SE

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

2025 Hyundai Kona EV SE

Attleboro, MA

UnscoredInsufficient · 0
$19,00025,043 mi

Attleboro, MA

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

North Kingstown, RI

UnscoredInsufficient · 4
$19,3009,962 mi

Comparison: 4 similar vehicles

North Kingstown, RI

2018 Tesla Model 3 Long Range

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

2018 Tesla Model 3 Long Range

Attleboro, MA

UnscoredInsufficient · 3
$19,99780,191 mi

Comparison: 3 similar vehicles

Attleboro, MA

2023 Nissan Ariya Engage

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

2023 Nissan Ariya Engage

North Kingstown, RI

Fair PriceModerate · 29
$20,20039,499 mi

Market: $18,384 – $20,299

Comparison: 29 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 16 days listed (based on current market benchmarks)

North Kingstown, RI

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

Old Saybrook, CT

UnscoredInsufficient · 0
$20,48723,458 mi

Old Saybrook, CT

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

North Kingstown, RI

Fair PriceRobust · 65
$20,60218,732 mi

Market: $19,995 – $23,785

Comparison: 65 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 25 days listed (based on current market benchmarks)

North Kingstown, RI

2023 Chevrolet Bolt EUV LT

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

2023 Chevrolet Bolt EUV LT

Old Saybrook, CT

Fair PriceLimited · 15
$20,91733,832 mi

Market: $18,500 – $23,598

Comparison: 15 similar vehicles

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

Old Saybrook, CT

2024 Nissan LEAF SV PLUS

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

2024 Nissan LEAF SV PLUS

Tolland, CT

UnscoredLimited · 5
$21,4956,923 mi

Comparison: 5 similar vehicles

Tolland, CT

2023 Hyundai IONIQ 5 SE

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

2023 Hyundai IONIQ 5 SE

Attleboro, MA

UnscoredInsufficient · 0
$21,49731,299 mi

Attleboro, MA

2021 Volkswagen ID.4 PRO S

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

2021 Volkswagen ID.4 PRO S

Stonington, CT

UnscoredInsufficient · 0
$21,57425,987 mi

Stonington, CT

2024 Chevrolet Equinox EV LT

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

2024 Chevrolet Equinox EV LT

North Kingstown, RI

UnscoredInsufficient · 0
$21,86930,246 mi

North Kingstown, RI

2024 Nissan ARIYA Engage

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

2024 Nissan ARIYA Engage

Warwick, RI

UnscoredLimited · 9
$21,99526,133 mi

Comparison: 9 similar vehicles

Warwick, RI

2023 Subaru SOLTERRA Limited

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

2023 Subaru SOLTERRA Limited

Manchester, CT

UnscoredInsufficient · 0
$21,99537,505 mi

Manchester, CT

2021 Tesla Model 3 Base

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

2021 Tesla Model 3 Base

Warwick, RI

Fair PriceLimited · 11
$21,99589,265 mi

Market: $19,990 – $26,546

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 51 days listed (based on current market benchmarks)

Warwick, RI

2023 Volkswagen ID.4 PRO

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

2023 Volkswagen ID.4 PRO

Coventry, RI

UnscoredLimited · 6
$22,29933,693 mi

Comparison: 6 similar vehicles

Coventry, RI

2023 Tesla Model 3 Base

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

2023 Tesla Model 3 Base

Cranston, RI

Great DealLimited · 11
$22,35239,777 mi

Market: $27,675 – $30,842

Comparison: 11 similar vehicles

Competitively priced ~19% below the typical range compared to similar vehicles · 48 days listed (based on current market benchmarks)

Cranston, RI

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

North Kingstown, RI

UnscoredInsufficient · 4
$22,3696,193 mi

Comparison: 4 similar vehicles

North Kingstown, RI

2023 Volkswagen ID.4 PRO

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

2023 Volkswagen ID.4 PRO

Westerly, RI

Fair PriceModerate · 40
$22,60525,597 mi

Market: $19,289 – $24,777

Comparison: 40 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 23 days listed (based on current market benchmarks)

Westerly, RI

2023 Volkswagen ID.4 S

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

2023 Volkswagen ID.4 S

Old Saybrook, CT

UnscoredInsufficient · 4
$22,87824,654 mi

Comparison: 4 similar vehicles

Old Saybrook, CT

2024 Nissan ARIYA Engage

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

2024 Nissan ARIYA Engage

Middletown, CT

Fair PriceModerate · 24
$22,98915,320 mi

Market: $20,499 – $24,590

Comparison: 24 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 19 days listed (based on current market benchmarks)

Middletown, CT

2023 Kia EV6 Wind

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

2023 Kia EV6 Wind

Somerset, MA

UnscoredLimited · 10
$22,99528,888 mi

Comparison: 10 similar vehicles

Somerset, MA

2023 Hyundai IONIQ 5 SEL

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

2023 Hyundai IONIQ 5 SEL

Attleboro, MA

Great DealLimited · 10
$22,99749,948 mi

Market: $24,374 – $26,594

Comparison: 10 similar vehicles

Competitively priced ~6% below the typical range compared to similar vehicles · 10 days listed (based on current market benchmarks)

Attleboro, MA

2024 Chevrolet Equinox EV LT

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

2024 Chevrolet Equinox EV LT

North Kingstown, RI

Great DealModerate · 49
$23,10023,153 mi

Market: $23,995 – $28,998

Comparison: 49 similar vehicles

Competitively priced ~4% below the typical range compared to similar vehicles · 25 days listed (based on current market benchmarks)

North Kingstown, RI

2024 Chevrolet Blazer EV LT

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

2024 Chevrolet Blazer EV LT

North Kingstown, RI

UnscoredLimited · 5
$23,10029,584 mi

Comparison: 5 similar vehicles

North Kingstown, RI

2023 Volkswagen ID.4 S

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

2023 Volkswagen ID.4 S

Stonington, CT

UnscoredInsufficient · 0
$23,15118,636 mi

Stonington, CT

2022 Kia EV6 Wind

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

2022 Kia EV6 Wind

North Kingstown, RI

UnscoredInsufficient · 0
$23,22239,077 mi

North Kingstown, RI

2022 Tesla Model 3 Base

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

2022 Tesla Model 3 Base

Dartmouth, MA

UnscoredInsufficient · 0
$23,59159,751 mi

Dartmouth, MA

2023 Subaru SOLTERRA Premium

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

2023 Subaru SOLTERRA Premium

Westport, MA

UnscoredLimited · 6
$23,68741,579 mi

Comparison: 6 similar vehicles

Westport, MA

2024 Chevrolet Blazer EV LT

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

2024 Chevrolet Blazer EV LT

North Kingstown, RI

UnscoredLimited · 19
$23,73231,155 mi

Comparison: 19 similar vehicles

North Kingstown, RI

2024 Chevrolet Blazer EV LT

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

2024 Chevrolet Blazer EV LT

Stonington, CT

UnscoredLimited · 5
$23,79419,528 mi

Comparison: 5 similar vehicles

Stonington, CT

2024 Chevrolet Blazer EV LT

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

2024 Chevrolet Blazer EV LT

North Kingstown, RI

UnscoredLimited · 5
$23,84822,936 mi

Comparison: 5 similar vehicles

North Kingstown, RI

2023 Toyota bZ4X Limited

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

2023 Toyota bZ4X Limited

Dartmouth, MA

UnscoredInsufficient · 3
$23,85145,119 mi

Comparison: 3 similar vehicles

Dartmouth, MA

2024 Chevrolet Blazer EV LT

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

2024 Chevrolet Blazer EV LT

Stonington, CT

UnscoredLimited · 5
$23,85419,725 mi

Comparison: 5 similar vehicles

Stonington, CT

2023 Volkswagen ID.4 PRO S

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

2023 Volkswagen ID.4 PRO S

Stonington, CT

Fair PriceModerate · 30
$23,87648,121 mi

Market: $20,998 – $24,440

Comparison: 30 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 16 days listed (based on current market benchmarks)

Stonington, CT

2024 Chevrolet Blazer EV LT

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

2024 Chevrolet Blazer EV LT

North Kingstown, RI

Fair PriceModerate · 46
$23,90015,141 mi

Market: $22,794 – $26,479

Comparison: 46 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 25 days listed (based on current market benchmarks)

North Kingstown, RI

2023 Volkswagen ID.4 PRO S

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

2023 Volkswagen ID.4 PRO S

Attleboro, MA

UnscoredInsufficient · 4
$23,90051,252 mi

Comparison: 4 similar vehicles

Attleboro, MA

2023 Kia EV6 Wind

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

2023 Kia EV6 Wind

Stonington, CT

Fair PriceModerate · 36
$23,97435,535 mi

Market: $21,990 – $28,370

Comparison: 36 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 103 days listed (based on current market benchmarks)

Stonington, CT

You can page through the first 500 listings. Add a filter, such as a ZIP code, price or year, to see others.

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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