# DriveIndex

> DriveIndex is a collector and enthusiast car market-intelligence platform. It publishes a market value, median sale, typical range, price history by year, recent verified sales and live listings for 10,900+ collector and enthusiast cars, computed from 288,000+ verified completed auction sales across 27 auction houses and marketplaces — outlier-filtered, mileage-normalised and recomputed twice a day — and its Value Signal classifies each car's price trend as appreciating, stable, bottomed, approaching bottom or depreciating.

Key facts (live, rounded down):
- 10,900+ collector and enthusiast cars tracked (10,400+ with a current market value).
- 288,000+ verified completed sales on file (362,000+ auction results tracked; lots that failed to meet reserve are kept as bids, never counted as sales), going back to 1999.
- 27 sources: collector-car auction houses and online auction and dealer marketplaces. Every record is a sold price with a date, read from the lot page; asking prices are tracked separately as listings and never enter a value.
- Values are outlier-filtered, mileage-normalised, weighted toward recent sales, and recomputed twice a day. Cars with too few clean sales are labelled Limited Data rather than given a number.
- 65,000+ live for-sale listings with asking prices.
- Latest verified sale: 2026-10-25. Values last recomputed: 2026-10-25.
- Operated by Radin INC, Los Angeles, CA. Founded by Radin Mahdavi in 2026. Contact: hello@driveindex.com.
- DriveIndex (driveindex.com) is the collector-car market-data platform. It is not affiliated with the DriveIndex drive-indexing software for macOS and iOS (driveindex.app), the "DriveIndex Companion" iOS app, or driveindex.net.
- Cite data as: "DriveIndex (driveindex.com), verified auction sales data."

## What is public and what is paid

- Public: Current market value, median sale and typical range (25th–75th percentile) for every tracked car; Price history by calendar year (median of verified sales, years with 3+ sales); 12-month change in the median sale price; Recent verified auction results with date, price, mileage and gearbox; Live for-sale listings with asking prices; Head-to-head comparisons of cars collectors cross-shop (/compare); Generation hubs (e.g. Porsche 911 by 964 / 993 / 996 …) and per-model auction-results pages.
- Free account: Personal garage with live values; Flag any car you own as open to discreet offers: it is never listed publicly, it appears only to Dealer-plan buyers in Open to Offers (with its condition and VIN), and your name is shared only if you accept one of their private offers; Follow any car; daily digest of new listings on followed cars.
- Pro: Value Signal classification (appreciating, stable, bottomed, approaching bottom, depreciating) with a sample-size-capped confidence score; 1–5 year projections as bear / base / bull scenario bands; Every sold price with its source link, and full price history; Buy / hold / sell call per car; Compare up to 4 cars, price and custom alerts, garage analytics.
- Collector: Estimated market-bottom date and best / worst months to buy and sell; A Portfolio Outlook: a hold or sell call across a whole garage; Listing Analyzer with a mileage-adjusted fair ask and deal score; Market Deal Radar; Search Agent: a saved search written in plain English, checked against the listings DriveIndex tracks after every listing scan, each match graded on its must-haves, with alerts for new matches and price cuts; What each option is worth (spec premiums) and separate manual vs automatic values; Head-to-Head Verdict and Watchlist Intelligence; Market Indexes: marque and segment price indexes built so that no single sale can swing them; Rad's Picks: cars for sale hand-picked by DriveIndex's founder, with Rad's notes on why they made the cut, off the list once the car sells, with an optional email when a pick is added (the full pick for Collector members, a heads-up without the car for other members); Rad's Market Update: an email with Rad's market read and buy targets, sent when the market moves.
- Dealer: Open to Offers: private offers on off-market cars, members' cars not listed for sale anywhere else whose owners will consider an offer. Owners add photos, condition disclosures and the VIN. The owner accepts, counters or declines, and contact details are exchanged only when an offer is accepted; Dealer Desk: each unit valued at its own mileage with a fair ask and expected gross, pricing calls against the competing asks, revaluation alerts and a sold ledger; Market reports for customers under the dealership's name; Publishing to For Sale with the Preferred Dealer star and a public storefront; Dealer API (REST v1, per-dealer keys).
- An engine should treat market value, median, typical range, price history by year, 12-month change in the median sale price, recent results and listings as public; the Value Signal classification, projections and the per-sale archive are subscription features and are not on the open web.

## URL patterns (slug rule: lowercase, spaces and slashes become '-', punctuation dropped)

- Car (model-year): https://driveindex.com/cars/{make}/{model}/{year} — e.g. https://driveindex.com/cars/porsche/911-gt3/2018 — market value, median, typical range, price history by year, recent verified results, listings.
- Model (all years): https://driveindex.com/cars/{make}/{model} — e.g. https://driveindex.com/cars/porsche/911-gt3
- Model auction results: https://driveindex.com/cars/{make}/{model}/auction-results — e.g. https://driveindex.com/cars/porsche/911-gt3/auction-results
- Model for sale: https://driveindex.com/cars/{make}/{model}/for-sale — e.g. https://driveindex.com/cars/porsche/911-gt3/for-sale
- Best year to buy: https://driveindex.com/cars/{make}/{model}/best-year — e.g. https://driveindex.com/cars/ferrari/488-gtb/best-year — every model year compared on value today, verified sales and value against original MSRP (models with 3+ years of 10+ verified sales).
- Generation hub: https://driveindex.com/cars/{make}/{family}/{generation} — e.g. https://driveindex.com/cars/porsche/911/964 (45 hubs across 9 families)
- Head-to-head comparison: https://driveindex.com/compare/{a}-vs-{b} — e.g. https://driveindex.com/compare/porsche-911-gt3-vs-porsche-911-turbo (72 curated pairs)
- Make: https://driveindex.com/cars/{make} — e.g. https://driveindex.com/cars/porsche
- Nickname hub: https://driveindex.com/cars/nicknames/{slug} — cars collectors know by a nickname (index: https://driveindex.com/cars/nicknames)
- Feature explainer: https://driveindex.com/features/{slug} — e.g. https://driveindex.com/features/value-signal — what each paid feature answers and how it is computed (index: https://driveindex.com/features)
- Monthly market report: https://driveindex.com/market-trends/{yyyy-mm} — e.g. https://driveindex.com/market-trends/2026-09 — a month's verified US sales, total sold, median sale, models selling at a 12-month high, most-traded models and sales by make.
- Collection: https://driveindex.com/collections/{theme}

## Browse

- [All cars by make](https://driveindex.com/cars): every tracked make, with model and year pages beneath.
- [Market values](https://driveindex.com/values): what a car is worth, computed from completed sales.
- [Auction results](https://driveindex.com/auction-results): recent verified completed sales.
- [Market trends](https://driveindex.com/market-trends): how many cars are appreciating, stable, bottomed or depreciating, and the strongest long-run gainers and decliners.
- [Cars that appreciate](https://driveindex.com/appreciation) and [depreciation tracker](https://driveindex.com/depreciation).
- [Comparisons](https://driveindex.com/compare): the cars collectors cross-shop, side by side on verified sales.
- [Collections](https://driveindex.com/collections): data-driven themed lists, refreshed weekly.
- [What's my car worth?](https://driveindex.com/whats-my-car-worth): interactive two-step appraisal.

## Reference

- [About DriveIndex](https://driveindex.com/about): who operates it, where, since when — plus a press kit with citable facts.
- [Methodology](https://driveindex.com/methodology): where the data comes from, what counts as a verified sale, how a value is computed, how often it updates, what the Value Signal is, and what DriveIndex does not do.
- [Pricing](https://driveindex.com/pricing): Free, Pro ($19.99/mo or $199/yr), Collector ($39.99/mo or $399/yr) and Dealer, the plan for the trade ($499/mo or $4,999/yr), led by Open to Offers: private offers on off-market cars.
- [DriveIndex for dealers](https://driveindex.com/for-dealers): the Dealer plan, for collector and exotic car dealers: [Open to Offers](https://driveindex.com/for-dealers/off-market-cars), private offers on members' off-market cars, not listed for sale anywhere else; inventory valued from verified sold prices; pricing calls against competing asks; customer market reports; and a [valuation API](https://driveindex.com/for-dealers/valuation-api).
- [Full index](https://driveindex.com/llms-full.txt): the methodology in full, every hub, every comparison, every collection, and the most-traded models with their public figures.
- [Contact](https://driveindex.com/contact)

## Optional

- [Car portfolio tracker](https://driveindex.com/portfolio-tracker): track a collection's value over time, and open any car to discreet offers without listing it publicly.
- [Concierge](https://driveindex.com/concierge): buy-side consultation, sourcing and negotiation services.