Skip to main content
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 24, 2026

6M+

Unique vehicles analyzed

as of October 24, 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

66 listings found

2003 Mercedes-Benz CLK-Class CLK320

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

2003 Mercedes-Benz CLK-Class CLK320

Lowell, MA

UnscoredInsufficient · 0
$5,989104,905 mi

Lowell, MA

2004 Mercedes-Benz CLK-Class CLK500

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

2004 Mercedes-Benz CLK-Class CLK500

Lowell, MA

UnscoredLimited · 5
$7,98998,565 mi

Comparison: 5 similar vehicles

Lowell, MA

2010 Mercedes-Benz E-Class E350 Sport

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

2010 Mercedes-Benz E-Class E350 Sport

Lowell, MA

UnscoredLimited · 9
$9,798105,959 mi

Comparison: 9 similar vehicles

Lowell, MA

2013 Mercedes-Benz C-Class C300 Sport

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

2013 Mercedes-Benz C-Class C300 Sport

Lowell, MA

UnscoredLimited · 9
$9,995110,686 mi

Comparison: 9 similar vehicles

Lowell, MA

2007 Mercedes-Benz CLK-Class CLK350

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

2007 Mercedes-Benz CLK-Class CLK350

Lowell, MA

UnscoredInsufficient · 3
$10,79869,512 mi

Comparison: 3 similar vehicles

Lowell, MA

2015 Mercedes-Benz C-Class C300

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

2015 Mercedes-Benz C-Class C300

Lowell, MA

UnscoredModerate · 22
$10,900146,869 mi

Comparison: 22 similar vehicles

Lowell, MA

2016 Mercedes-Benz GLC GLC300

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

2016 Mercedes-Benz GLC GLC300

Lowell, MA

UnscoredLimited · 8
$11,578130,608 mi

Comparison: 8 similar vehicles

Lowell, MA

2015 Mercedes-Benz GLA-Class GLA250

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

2015 Mercedes-Benz GLA-Class GLA250

Lowell, MA

Fair PriceModerate · 24
$12,47882,326 mi

Market: $8,950 – $13,995

Comparison: 24 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 94 days listed (based on current market benchmarks)

Lowell, MA

2016 Mercedes-Benz GL-Class GL450

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

2016 Mercedes-Benz GL-Class GL450

Lowell, MA

UnscoredModerate · 20
$12,995120,147 mi

Comparison: 20 similar vehicles

Lowell, MA

2005 Mercedes-Benz SL-Class SL500

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

2005 Mercedes-Benz SL-Class SL500

Lowell, MA

Fair PriceLimited · 11
$12,998117,907 mi

Market: $9,995 – $14,900

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 790 days listed (based on current market benchmarks)

Lowell, MA

2016 Mercedes-Benz C-Class C300 Sport

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

2016 Mercedes-Benz C-Class C300 Sport

Lowell, MA

UnscoredLimited · 7
$13,900114,259 mi

Comparison: 7 similar vehicles

Lowell, MA

2003 Mercedes-Benz SL-Class SL500

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

2003 Mercedes-Benz SL-Class SL500

Lowell, MA

UnscoredLimited · 6
$13,98979,206 mi

Comparison: 6 similar vehicles

Lowell, MA

2012 Mercedes-Benz E-Class E350

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

2012 Mercedes-Benz E-Class E350

Lowell, MA

UnscoredInsufficient · 4
$13,99887,502 mi

Comparison: 4 similar vehicles

Lowell, MA

2017 Mercedes-Benz GLC GLC300

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

2017 Mercedes-Benz GLC GLC300

Lowell, MA

Fair PriceRobust · 72
$14,47895,412 mi

Market: $12,299 – $18,807

Comparison: 72 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 42 days listed (based on current market benchmarks)

Lowell, MA

2014 Mercedes-Benz E-Class E350 Luxury

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

2014 Mercedes-Benz E-Class E350 Luxury

Lowell, MA

UnscoredLimited · 8
$14,99860,769 mi

Comparison: 8 similar vehicles

Lowell, MA

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

Lowell, MA

Fair PriceLimited · 14
$15,578108,560 mi

Market: $12,200 – $19,900

Comparison: 14 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 163 days listed (based on current market benchmarks)

Lowell, MA

2018 Mercedes-Benz C-Class Sedan C300

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

2018 Mercedes-Benz C-Class Sedan C300

Lowell, MA

Fair PriceModerate · 24
$15,59992,240 mi

Market: $10,900 – $19,596

Comparison: 24 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 11 days listed (based on current market benchmarks)

Lowell, MA

2017 Mercedes-Benz GLE-Class GLE350

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

2017 Mercedes-Benz GLE-Class GLE350

Lowell, MA

Fair PriceLimited · 14
$15,98799,631 mi

Market: $14,489 – $23,415

Comparison: 14 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 7 days listed (based on current market benchmarks)

Lowell, MA

2014 Mercedes-Benz S-Class S550

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

2014 Mercedes-Benz S-Class S550

Lowell, MA

UnscoredLimited · 7
$16,478111,928 mi

Comparison: 7 similar vehicles

Lowell, MA

2007 Mercedes-Benz SL-Class SL550

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

2007 Mercedes-Benz SL-Class SL550

Lowell, MA

Great DealLimited · 11
$16,89866,241 mi

Market: $17,683 – $28,500

Comparison: 11 similar vehicles

Competitively priced ~4% below the typical range compared to similar vehicles · 141 days listed (based on current market benchmarks)

Lowell, MA

2019 Mercedes-Benz CLA CLA250

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

2019 Mercedes-Benz CLA CLA250

Lowell, MA

UnscoredLimited · 8
$17,57862,363 mi

Comparison: 8 similar vehicles

Lowell, MA

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

Lowell, MA

UnscoredLimited · 9
$18,39866,423 mi

Comparison: 9 similar vehicles

Lowell, MA

2018 Mercedes-Benz GLS-Class GLS450

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

2018 Mercedes-Benz GLS-Class GLS450

Lowell, MA

UnscoredLimited · 9
$18,57896,243 mi

Comparison: 9 similar vehicles

Lowell, MA

2020 Mercedes-Benz GLA GLA250

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

2020 Mercedes-Benz GLA GLA250

Lowell, MA

Fair PriceLimited · 16
$18,97072,072 mi

Market: $15,431 – $19,900

Comparison: 16 similar vehicles

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

Lowell, MA

2021 Mercedes-Benz GLA GLA250

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

2021 Mercedes-Benz GLA GLA250

Lowell, MA

UnscoredLimited · 7
$18,99896,813 mi

Comparison: 7 similar vehicles

Lowell, MA

2017 Mercedes-Benz GLS-Class GLS550

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

2017 Mercedes-Benz GLS-Class GLS550

Lowell, MA

Fair PriceLimited · 16
$19,57891,467 mi

Market: $14,995 – $22,785

Comparison: 16 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 210 days listed (based on current market benchmarks)

Lowell, MA

2003 Mercedes-Benz SL-Class SL500

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

2003 Mercedes-Benz SL-Class SL500

Lowell, MA

UnscoredLimited · 5
$19,99864,203 mi

Comparison: 5 similar vehicles

Lowell, MA

2015 Mercedes-Benz SLK-Class SLK250

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

2015 Mercedes-Benz SLK-Class SLK250

Lowell, MA

UnscoredInsufficient · 0
$20,98951,422 mi

Lowell, MA

2020 Mercedes-Benz C-Class Coupe C300

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

2020 Mercedes-Benz C-Class Coupe C300

Lowell, MA

Great DealLimited · 13
$20,99885,095 mi

Market: $22,920 – $23,819

Comparison: 13 similar vehicles

Competitively priced ~8% below the typical range compared to similar vehicles · 486 days listed (based on current market benchmarks)

Lowell, MA

2013 Mercedes-Benz CL-Class CL550

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

2013 Mercedes-Benz CL-Class CL550

Lowell, MA

UnscoredInsufficient · 0
$21,49872,373 mi

Lowell, MA

2007 Mercedes-Benz CLK-Class CLK63

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

2007 Mercedes-Benz CLK-Class CLK63

Lowell, MA

UnscoredInsufficient · 0
$21,59878,107 mi

Lowell, MA

2017 Mercedes-Benz GLE-Class GLE350

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

2017 Mercedes-Benz GLE-Class GLE350

Lowell, MA

Fair PriceLimited · 14
$22,98979,499 mi

Market: $14,489 – $23,415

Comparison: 14 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 1263 days listed (based on current market benchmarks)

Lowell, MA

2020 Mercedes-Benz GLB Base

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

2020 Mercedes-Benz GLB Base

Lowell, MA

OverpricedLimited · 10
$24,99840,397 mi

Market: $23,697 – $23,798

Comparison: 10 similar vehicles

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

Lowell, MA

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

Lowell, MA

Fair PriceModerate · 37
$25,59871,540 mi

Market: $22,988 – $28,369

Comparison: 37 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 225 days listed (based on current market benchmarks)

Lowell, MA

2025 Mercedes-Benz CLA 250

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

2025 Mercedes-Benz CLA 250

Lowell, MA

UnscoredInsufficient · 3
$29,29837,697 mi

Comparison: 3 similar vehicles

Lowell, MA

2023 Mercedes-Benz GLB Base

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

2023 Mercedes-Benz GLB Base

Lowell, MA

Fair PriceModerate · 38
$29,39835,763 mi

Market: $28,394 – $30,595

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 232 days listed (based on current market benchmarks)

Lowell, MA

2020 Mercedes-Benz GLC GLC300

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

2020 Mercedes-Benz GLC GLC300

Lowell, MA

OverpricedModerate · 22
$29,98946,141 mi

Market: $22,998 – $26,678

Comparison: 22 similar vehicles

Priced ~12% above the typical market range for similar vehicles (based on current market benchmarks)

Lowell, MA

2018 Mercedes-Benz CLA AMG CLA45

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

2018 Mercedes-Benz CLA AMG CLA45

Lowell, MA

UnscoredInsufficient · 0
$29,98955,998 mi

Lowell, MA

2016 Mercedes-Benz S-Class S550

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

2016 Mercedes-Benz S-Class S550

Lowell, MA

Fair PriceModerate · 36
$29,99865,144 mi

Market: $13,999 – $34,088

Comparison: 36 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 395 days listed (based on current market benchmarks)

Lowell, MA

2015 Mercedes-Benz S-Class S550

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

2015 Mercedes-Benz S-Class S550

Lowell, MA

UnscoredInsufficient · 3
$29,99851,110 mi

Comparison: 3 similar vehicles

Lowell, MA

2019 Mercedes-Benz GLA-Class GLA250

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

2019 Mercedes-Benz GLA-Class GLA250

Lowell, MA

UnscoredInsufficient · 0
$30,9896,310 mi

Lowell, MA

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

Lowell, MA

Fair PriceLimited · 11
$30,99834,377 mi

Market: $28,200 – $33,593

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 350 days listed (based on current market benchmarks)

Lowell, MA

2019 Mercedes-Benz C-Class Cabriolet C300

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

2019 Mercedes-Benz C-Class Cabriolet C300

Lowell, MA

UnscoredInsufficient · 0
$31,98948,288 mi

Lowell, MA

2016 Mercedes-Benz GL-Class GL63 AMG

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

2016 Mercedes-Benz GL-Class GL63 AMG

Lowell, MA

UnscoredInsufficient · 0
$32,98979,136 mi

Lowell, MA

2020 Mercedes-Benz GLS GLS450

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

2020 Mercedes-Benz GLS GLS450

Lowell, MA

Fair PriceModerate · 38
$33,79872,378 mi

Market: $21,184 – $40,995

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 174 days listed (based on current market benchmarks)

Lowell, MA

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

Lowell, MA

UnscoredLimited · 8
$35,48955,000 mi

Comparison: 8 similar vehicles

Lowell, MA

2019 Mercedes-Benz S-Class S450

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

2019 Mercedes-Benz S-Class S450

Lowell, MA

UnscoredInsufficient · 4
$35,79858,864 mi

Comparison: 4 similar vehicles

Lowell, MA

1991 Mercedes-Benz 300

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

1991 Mercedes-Benz 300

Lowell, MA

UnscoredInsufficient · 0
$39,99835,800 mi

Lowell, MA

2016 Mercedes-Benz GLE-Class Coupe GLE63 S AMG

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

2016 Mercedes-Benz GLE-Class Coupe GLE63 S AMG

Lowell, MA

UnscoredInsufficient · 0
$40,59859,292 mi

Lowell, MA

2022 Mercedes-Benz GLS GLS450

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

2022 Mercedes-Benz GLS GLS450

Lowell, MA

Fair PriceModerate · 36
$40,79875,396 mi

Market: $36,842 – $42,495

Comparison: 36 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 259 days listed (based on current market benchmarks)

Lowell, 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. 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

Explore Popular Markets

Independent, evidence-backed pricing intelligence for every major US metro

We collect personal information as described in our Notice at Collection and Privacy Policy. You may opt out of the sale or sharing of your personal information.