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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 15, 2026

5.9M+

Unique vehicles analyzed

as of October 15, 2026

57,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

3.2M new·2.7M used·Listings processed daily

Or explore the market

1,998 listings found

2013 Nissan LEAF SL

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

2013 Nissan LEAF SL

Auburn, MA

UnscoredInsufficient · 0
$3,49565,355 mi

Auburn, MA

2015 Nissan LEAF SV

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

2015 Nissan LEAF SV

Mendon, MA

UnscoredInsufficient · 0
$4,49969,609 mi

Mendon, MA

2013 Nissan LEAF S

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

2013 Nissan LEAF S

Shrewsbury, MA

UnscoredInsufficient · 0
$4,49970,035 mi

Shrewsbury, MA

2013 Nissan LEAF SL

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

2013 Nissan LEAF SL

Stow, MA

UnscoredInsufficient · 0
$4,79581,000 mi

Stow, MA

2014 Mitsubishi i-MiEV ES

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

2014 Mitsubishi i-MiEV ES

Plaistow, NH

UnscoredInsufficient · 0
$4,99079,400 mi

Plaistow, NH

2012 Nissan LEAF SV

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

2012 Nissan LEAF SV

Stow, MA

UnscoredInsufficient · 0
$4,99543,000 mi

Stow, MA

2017 Nissan LEAF S

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

2017 Nissan LEAF S

Worcester, MA

UnscoredInsufficient · 0
$6,99853,291 mi

Worcester, MA

2018 Nissan LEAF SL

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

2018 Nissan LEAF SL

Worcester, MA

UnscoredInsufficient · 0
$10,49581,918 mi

Worcester, MA

2018 Tesla Model 3 Long Range Dual Motor

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

2018 Tesla Model 3 Long Range Dual Motor

Auburn, MA

UnscoredLimited · 8
$10,800210,000 mi

Comparison: 8 similar vehicles

Auburn, MA

2015 Tesla Model S 70D

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

2015 Tesla Model S 70D

Dedham, MA

UnscoredInsufficient · 3
$12,499123,000 mi

Comparison: 3 similar vehicles

Dedham, MA

2018 Nissan LEAF SV

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

2018 Nissan LEAF SV

Belmont, MA

UnscoredInsufficient · 0
$12,58825,689 mi

Belmont, MA

2019 Nissan Leaf S

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

2019 Nissan Leaf S

Newton, MA

UnscoredInsufficient · 0
$12,97736,847 mi

Newton, MA

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

Lowell, MA

UnscoredInsufficient · 0
$13,12866,571 mi

Lowell, MA

2021 Volkswagen ID.4 1st Edition

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

2021 Volkswagen ID.4 1st Edition

East Providence, RI

UnscoredInsufficient · 0
$13,395108,892 mi

East Providence, RI

2019 Hyundai Kona EV Limited

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

2019 Hyundai Kona EV Limited

Abington, MA

UnscoredLimited · 7
$13,67566,716 mi

Comparison: 7 similar vehicles

Abington, MA

2021 Nissan Leaf S

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

2021 Nissan Leaf S

Westborough, MA

UnscoredInsufficient · 0
$13,99836,027 mi

Westborough, MA

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

2022 Nissan LEAF SV

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

2022 Nissan LEAF SV

Acton, MA

UnscoredInsufficient · 0
$14,99554,630 mi

Acton, MA

2022 Nissan LEAF SV Plus

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

2022 Nissan LEAF SV Plus

Arlington, MA

UnscoredInsufficient · 0
$15,47962,225 mi

Arlington, MA

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

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

Acton, MA

UnscoredInsufficient · 0
$15,59479,723 mi

Acton, MA

2020 Chevrolet Bolt EV Premier

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

2020 Chevrolet Bolt EV Premier

Tewksbury, MA

UnscoredInsufficient · 0
$15,89683,097 mi

Tewksbury, MA

2019 Tesla Model 3 Mid Range

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

2019 Tesla Model 3 Mid Range

Tewksbury, MA

UnscoredInsufficient · 0
$15,896128,698 mi

Tewksbury, 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

Boston, MA

Great DealLimited · 14
$15,99027,868 mi

Market: $16,995 – $17,900

Comparison: 14 similar vehicles

Competitively priced ~6% below the typical range compared to similar vehicles · 58 days listed (based on current market benchmarks)

Boston, MA

2023 Hyundai Kona EV SE

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

2023 Hyundai Kona EV SE

Worcester, MA

UnscoredInsufficient · 0
$15,99856,651 mi

Worcester, MA

2023 Nissan Leaf S

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

2023 Nissan Leaf S

Hudson, NH

UnscoredInsufficient · 4
$16,18920,375 mi

Comparison: 4 similar vehicles

Hudson, NH

2022 Hyundai IONIQ 5 SE

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

2022 Hyundai IONIQ 5 SE

Milford, MA

UnscoredInsufficient · 4
$16,39599,581 mi

Comparison: 4 similar vehicles

Milford, MA

2025 Nissan Leaf S

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

2025 Nissan Leaf S

Marlborough, MA

Fair PriceModerate · 23
$16,49513,775 mi

Market: $13,995 – $17,194

Comparison: 23 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 90 days listed (based on current market benchmarks)

Marlborough, MA

2018 Tesla Model 3 Long Range Dual Motor

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

2018 Tesla Model 3 Long Range Dual Motor

Avon, MA

UnscoredLimited · 8
$16,900122,564 mi

Comparison: 8 similar vehicles

Avon, MA

2018 Tesla Model 3 Long Range Dual Motor

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

2018 Tesla Model 3 Long Range Dual Motor

East Greenwich, RI

UnscoredLimited · 5
$16,900110,515 mi

Comparison: 5 similar vehicles

East Greenwich, RI

2023 Nissan Leaf S

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

2023 Nissan Leaf S

Woburn, MA

UnscoredInsufficient · 3
$16,93221,725 mi

Comparison: 3 similar vehicles

Woburn, MA

2020 Nissan Leaf S

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

2020 Nissan Leaf S

Lowell, MA

UnscoredInsufficient · 0
$16,98920,933 mi

Lowell, 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

Framingham, MA

Fair PriceLimited · 17
$16,99529,212 mi

Market: $15,990 – $17,900

Comparison: 17 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 90 days listed (based on current market benchmarks)

Framingham, MA

2018 Tesla Model 3 Long Range Dual Motor

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

2018 Tesla Model 3 Long Range Dual Motor

Methuen, MA

UnscoredInsufficient · 3
$16,999111,253 mi

Comparison: 3 similar vehicles

Methuen, MA

2025 Nissan Leaf S

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

2025 Nissan Leaf S

Marlborough, MA

Fair PriceModerate · 23
$17,17519,536 mi

Market: $13,995 – $17,194

Comparison: 23 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 28 days listed (based on current market benchmarks)

Marlborough, MA

2023 Nissan Leaf S

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

2023 Nissan Leaf S

Medford, MA

UnscoredInsufficient · 3
$17,31225,300 mi

Comparison: 3 similar vehicles

Medford, MA

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

West Bridgewater, MA

UnscoredInsufficient · 3
$17,394101,600 mi

Comparison: 3 similar vehicles

West Bridgewater, MA

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

Tewksbury, MA

UnscoredLimited · 9
$17,39696,904 mi

Comparison: 9 similar vehicles

Tewksbury, MA

2021 Chevrolet Bolt EV Premier

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

2021 Chevrolet Bolt EV Premier

Dracut, MA

UnscoredInsufficient · 0
$17,50062,153 mi

Dracut, MA

2020 Tesla Model 3 Base

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

2020 Tesla Model 3 Base

Everett, MA

UnscoredLimited · 8
$17,900148,280 mi

Comparison: 8 similar vehicles

Everett, MA

2021 Tesla Model Y Long Range

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

2021 Tesla Model Y Long Range

Derry, NH

UnscoredModerate · 27
$17,999158,867 mi

Comparison: 27 similar vehicles

Derry, NH

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

Worcester, MA

UnscoredInsufficient · 3
$17,999111,990 mi

Comparison: 3 similar vehicles

Worcester, MA

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 · 7
$18,294126,541 mi

Comparison: 7 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

2021 Hyundai Kona EV Limited

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

2021 Hyundai Kona EV Limited

Somerville, MA

UnscoredInsufficient · 0
$18,47639,174 mi

Somerville, MA

2018 Tesla Model 3 Long Range Dual Motor

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

2018 Tesla Model 3 Long Range Dual Motor

Arlington, MA

UnscoredLimited · 8
$18,49597,500 mi

Comparison: 8 similar vehicles

Arlington, MA

2020 Tesla Model 3 Base

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

2020 Tesla Model 3 Base

Framingham, MA

Fair PriceLimited · 10
$18,590103,510 mi

Market: $17,900 – $25,448

Comparison: 10 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 271 days listed (based on current market benchmarks)

Framingham, MA

No Photo

2020 Hyundai Kona EV Ultimate

Marlborough, MA

UnscoredInsufficient · 0
$18,59442,612 mi

Marlborough, MA

2021 Hyundai Kona EV SEL

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

2021 Hyundai Kona EV SEL

Westborough, MA

UnscoredInsufficient · 0
$18,59522,237 mi

Westborough, MA

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, and mileage is not used to select comparables or adjust comparable prices, but acts as a reliability check on used vehicles — OAV withholds a verdict when mileage is very high or unreliable, or when a lower price is better explained by higher-than-typical mileage than by a genuine market discount. 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 verdict thresholds are published, thin evidence means Unscored, and dealers cannot pay to change an OAV.io verdict, its eligibility or a listing's placement on OAV.io.

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 manage their profile, 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, exports, and enhanced merchandising.
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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