Methodology
How OAV Works
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.
How OAV Rates a Price
OAV builds the supported comparable range starting from comparable vehicles in the local market, and broadens the geographic comparison set to a wider regional cohort when local inventory is not deep enough to support a reliable range. A vehicle is scored only when the resulting cohort is deep enough and the listed data passes OAV's reliability checks. When OAV evaluates a listing but the evidence does not support a verdict, the listing is Unscored, and the reason is shown on the vehicle's page.
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.
Price-to-Market verdicts and Unscored
- 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.
- Overpriced
- Priced above the comparable range.
- Unscored
- OAV did not issue a price verdict because the evidence does not support one.
OAV does not publish a verdict for a vehicle its title data identifies as branded or salvage.
How OAV Identifies Deals
OAV builds a comparable range for each vehicle from regularly refreshed dealer-advertised listings — same make, model and year range, trim where the data supports it. Where the evidence supports a verdict, a vehicle is rated by how its asking price compares to that range; days-on-lot and sell-through are separate demand signals, never inputs to the Price-to-Market verdict. When OAV evaluates a listing but the evidence does not support a verdict, the listing is Unscored.
- Millions of retail comparables across U.S. markets.
- Vehicles compared on year, make, model, and trim (when available).
- Real price-to-market ranges from regularly refreshed market data.
- Days-on-lot is a separate demand signal, never an input to the Price-to-Market verdict.
- Listings priced below the comparable-range floor by at least OAV's minimum-gap margin surface as Great Deal — a great deal compared to similar vehicles currently for sale.
- Listings priced within the comparable range, or below the floor by less than that margin surface as Fair Price — fairly priced, in line with what comparable vehicles are typically listed for.
- Listings priced above the comparable range surface as Overpriced — above market, higher than what comparable vehicles are typically listed for.
- Dealer business information is public on every profile. OAV-claimed dealers manage their profile directly and route inquiries through OAV.
This helps identify which listings are a great deal relative to comparable vehicles — OAV's Great Deal verdict — and shows the evidence behind every rating.
Powered by OAV's patented vehicle market standardization technology (U.S. Patent No. 12,236,477).
How the Best Used Car Deals List Is Built
Rated Great Deal
Only vehicles OAV rates Great Deal are eligible for the list.
Comparable depth
At least 10 comparable listings.
Range width
The comparable range, from floor to ceiling, must be no wider than 30% of the floor.
Minimum saving
A minimum saving of $1,500 below the floor.
Deepest discount
A vehicle priced more than 30% below the floor is not listed; prices that low can point to a data or title problem. It is the same threshold at which a vehicle's own page shows its verify-before-inquiring caution.
Evidence for deep discounts
Discounts of more than 20% below the floor require at least 50 comparable listings: a large gap on thin evidence is what a listing error looks like.
Excluded
- OAV does not publish a verdict for a vehicle its title data identifies as branded or salvage.
- Commercial chassis and fleet bodies.
- Collector-age vehicles more than 25 years old.
Vehicles that clear every rule are listed deepest discount first, measured as a percentage of the floor, then by number of comparable listings (more first), then by dollar saving (larger first).
This is a curated, evidence-qualified list, not a claim to have found every underpriced car in the country.
Rule changes
Rules version board-rules-2026-09-24
- 2026-09-23 — Deepest crownable discount lowered from 33% to 30%, the same line at which a vehicle page shows its verify-before-inquiring caution; every rule re-checked against live figures at render; commercial chassis and collector-age vehicles excluded.
- 2026-09-24 — Discounts of more than 20% below the floor now require at least 50 comparable listings, on this board and on the homepage strip alike. Vehicles that left the board under this rule were not re-rated; only their eligibility for featuring changed.
Vehicle-Type Market Guides
Pick a vehicle type, then a state, to open that state's market page.
Trucks
About the truck market
The half-ton segment (Ford F-150, Ram 1500, Chevrolet Silverado 1500, GMC Sierra 1500, Toyota Tundra) carries most of the volume; heavy-duty trims (F-250+, Ram 2500+, Silverado 2500+) command premiums for towing capacity and diesel availability. 4WD/AWD configurations dominate in mountain and snow markets and resell at noticeable premiums — XLT, Lariat, TRD Off-Road, and trail-rated trims hold value better than work trucks at the same model year. Days-on-lot tends to compress in the spring as work-and-tow buyers re-enter the market.
SUVs
About the SUV market
Compact SUVs (CR-V, RAV4, Rogue, CX-5, Tucson, Sportage) clear faster than midsize and full-size for under-$30k buyers — they're the family-budget entry point. Midsize three-row SUVs (Highlander, Pilot, Telluride, Palisade, Atlas) draw multi-child families, with second-row captain's chairs commanding a premium. Full-size body-on-frame SUVs (Tahoe, Suburban, Yukon, Expedition, Sequoia) skew toward tow-rated households; AWD/4WD trims hold value better than 2WD across all segments.
Sedans
About the sedan market
Sedans benefit from a structural pricing advantage in the used market because new-car demand has shifted toward SUVs — the same model-year Camry, Accord, Civic, or Corolla typically lists below an equivalently equipped CR-V or RAV4. Hybrid sedan trims (Camry Hybrid, Accord Hybrid, Sonata Hybrid) carry a ~$2-3k premium that pays back over typical hold periods via fuel savings. Premium and sport-trim sedans (Camry XSE, Accord Touring, Civic Si, Mazda3 Turbo) sell faster than base trims when priced competitively.
EVs
About the EV market
Tesla Model Y and Model 3 dominate volume in most markets, with Ford Mustang Mach-E, Hyundai Ioniq 5, Kia EV6, Chevrolet Bolt, and Nissan Leaf as the largest non-Tesla cohorts. Federal used-EV tax credit rules changed after September 30, 2025 — shoppers should verify current federal, state, and local incentives before relying on any EV incentive estimate. Battery-health reports and remaining warranty coverage are the two factors most consistently associated with stronger-than-comp pricing. Range anxiety and home-charger availability vary by metro — coastal and Sun Belt markets typically clear EV inventory faster than colder-climate regions.
Minivans
About the minivan market
Four players dominate the segment: Chrysler Pacifica, Toyota Sienna, Honda Odyssey, and Kia Carnival. Family-hauler demand keeps days-on-lot compressed on well-maintained examples with sliding doors, second-row captain's chairs, and clean interiors. Pacifica Hybrid and Sienna AWD/Hybrid are particularly scarce — they sell faster than gas-only trims at the same price point. Mileage sensitivity is higher than in the truck or SUV segments because minivans typically rack up family-transport miles fast, so a low-mile example carries an outsized premium.
Coupes
About the coupe market
Volume splits between sport coupes (Mustang, Camaro, Challenger) and luxury/premium coupes (BMW 4-Series, Mercedes-Benz C-Class Coupe, Audi A5, Lexus RC). Performance-trim premiums are real — GT, SS, Scat Pack, M-Sport, and AMG variants resell ahead of base trims. Lower production volume means cleaner low-mile examples sell quickly when priced near comparable ranges; high-mile track-day cars command discounts buyers should diligence carefully.
Hybrids
About the hybrid market
Toyota leads hybrid volume across nearly every metro — RAV4 Hybrid, Camry Hybrid, Highlander Hybrid, and Prius account for the bulk of inventory. Honda Accord Hybrid, CR-V Hybrid, and Hyundai/Kia hybrid sedans round out the next tier. Hybrid resale has historically tracked ahead of equivalent gas trims by $2-3k at 3-5 years; the premium narrows on higher-mile examples but rarely disappears. Plug-in hybrids (RAV4 Prime, Pacifica Hybrid, Wrangler 4xe) are scarce and command meaningful premiums when they appear.
What makes OAV different from traditional car-listing sites
Traditional vehicle-listing marketplaces are built for shoppers to browse inventory. OAV is the answer-engine layer above the marketplace: it evaluates vehicle asking prices with Price-to-Market against comparable listings and shows the market evidence behind each verdict. Days-on-lot and sell-through from similar vehicles are separate demand evidence, never inputs to the Price-to-Market verdict. OAV is built for the next car-shopping behavior: asking which vehicle to buy, not just browsing inventory.
Sold Prices and Demand Evidence
- Grain: state × make × model × month. Only fully-closed reporting months are published.
- Prices are rounded to the nearest $500 and odometer readings to the nearest 5,000 miles. The latest month's sales and dealer counts are exact; monthly counts are shown in ranges.
- The comparison between the current asking median and the recent sold median is a dated, market-level comparison of two rounded medians — not an offer, not a guarantee, not the discount on any single vehicle, and not a dealer-margin claim.
- MRP and TRV are descriptive references; the Great Deal / Fair Price / Overpriced verdict is a separate Price-to-Market call, measured against the comparable range.
- Demand-Verified is a sell-through signal independent of Price-to-Market. A Demand-Verified Deal is the narrower intersection of a Demand-Verified listing and an OAV Great Deal verdict. While OAV re-validates the sell-through claim, the badge is withheld on every listing and no Demand-Verified Deals are being labeled.
Common Questions
What is Price-to-Market (PTM)?
Price-to-Market (PTM) is OAV's deal-rating system. OAV compares a listing's asking price against comparable listings and, when the evidence supports one, publishes a verdict: Great Deal, Fair Price or Overpriced. A Great Deal is priced below the comparable-range floor by at least OAV's minimum-gap margin. When OAV evaluates a listing but the evidence does not support a verdict, the listing is Unscored. OAV does not publish a verdict for a vehicle its title data identifies as branded or salvage. Days-on-lot and sell-through are separate demand signals, never verdict inputs. Price-to-Market verdicts appear on OAV's market, dealer and vehicle pages.
How does OAV find cars priced below market?
OAV compares a listing's asking price against similar vehicles currently for sale — 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 — to compute a price-to-market range. 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.
What makes a Demand-Verified Deal different from a cheap listing?
A cheap listing is just priced low. The Demand-Verified badge is sell-through evidence: the listing's similar-vehicle sold cohort is moving faster than its market baseline, and this listing hasn't aged beyond that cohort's typical selling window — it is separate from OAV's price verdict. A Demand-Verified Deal combines both: the Demand-Verified badge AND a Great Deal verdict from Price-to-Market (priced below the comparable-range floor by at least OAV's minimum-gap margin). The price verdict establishes where the asking price sits relative to OAV's supported comparable range. The Demand-Verified signal measures whether the matched sold cohort is moving faster than its market baseline and whether this listing remains within that cohort's typical selling window — it does not show that buyers are paying this listing's asking price. While OAV re-validates the sell-through claim, the badge is withheld on every listing and no Demand-Verified Deals are being labeled.
Does OAV use local market comparables?
Yes — local-first. OAV starts with comparable retail listings in the same metro and broader region, and widens the comparison set only when local inventory is too thin to support a reliable range. A truck in Dallas is compared against Dallas-area trucks where the local market supports it; an EV in Los Angeles against LA-area EVs. This local-first approach makes the price-to-market math meaningful.
Can OAV help find trucks, SUVs, or EVs priced below market?
Yes — OAV has body-type market views for trucks, SUVs, sedans and EVs in major U.S. metros and ZIP codes. Each listing links to its vehicle page. Start at the homepage or any city or ZIP page.
Is a car priced below market a good deal?
Not automatically. A low asking price can reflect mileage, condition, title status or differences in configuration. OAV's verdict evaluates the asking price against comparable listings; it does not certify the vehicle's condition or history.
Does OAV give a book value or trade-in value?
No. OAV does not publish book, trade-in or appraisal values. Its vehicle pages can show True Retail Value (TRV™), an estimate of what similar vehicles recently sold for, which is not an appraisal.
More Methodology
- OAV Score
OAV Score is OAV's composite dealer-quality indicator, combining buyer responsiveness, OAV buyer reviews, and external ratings into a single 0-100 score.
- Pressure Index
Pressure Index is OAV's proprietary inventory-pressure indicator that combines deal-mix shifts, days-on-lot drift, and price-to-market position changes into a single directional signal.
- Dealer Inventory Health
How OAV measures dealer inventory health: aging inventory exposure, retail velocity, inventory turn, and pricing pressure.
- Top-cited vehicles methodology
- How often AI answer engines cite OAV
OAV's dated measurement of how often AI answer engines cite an app.oav.io page in answers to a fixed set of vehicle-shopping questions, stated as one overall share per complete run.