PistonHeads UK Vehicle Asking-Price Comps

Get a complete bounded PistonHeads cohort for an exact UK used-car make and model. A specialist dealer can compare current asking-price median with 20 linked lower-priced examples before sourcing or repricing a vehicle. Schedule the same cohort and archive cohortKey and observedAt snapshots. This is unofficial asking-price observation, not sold-price valuation, vehicle inspection, dealer margin or an alert service.

Input

Enter 1–3 models objects with numeric makeId and modelId copied from the same public /buy/search?make-id=...&model-id=... URL. Example: {"models":[{"makeId":43,"modelId":519,"yearMin":1998,"yearMax":2005}]} screens Porsche 911 Carrera [996]. Optional year range and mileage ceiling narrow the source cohort. Year bounds must be ordered. Duplicate cohorts are fetched and billed once. Arbitrary URLs, postcodes, seller IDs and account data are not accepted.

Output

One row per complete exact cohort gives source total, unique retrieved count, qualified and excluded counts, GBP asking-price median/range, and up to 20 lowest-priced linked listings with year and mileage. All qualified records contribute to the statistics. sourceUrl links to the public make/model search entrypoint; optional year and mileage filters are applied by GraphQL and shown in separate row fields because the HTML URL ignores those query parameters. Low asking price does not mean a bargain. POA, auction, non-GBP and incomplete records are excluded. Seller names, contact details, descriptions and images are never requested. observedAt is acquisition time, not verified price-change time. A true source total of zero returns no_listings with omitted price fields. Above 500 results, narrow filters and rerun; incomplete, blocked, malformed or timed-out acquisition fails before output or charge.

Pricing

One complete cohort row costs $0.02 via cohort-comps-created, including an evidenced zero. One to three distinct cohorts cost $0.02–$0.06; no per-car event or actor-specific free trial.

Limits

256 MB, no paid API, proxy or browser. Fifty adverts per page, up to ten pages and 500 adverts per cohort; at most 31 requests including robots. Requests are paced, response capped and timeout at 20 seconds. No login, seller contact or transactions.

Privacy

Seller names, contact details, descriptions and images are never requested or emitted.

Source terms

PistonHeads terms restrict commercial scraping and redistribution; the dated scout quotes the clause and records DR-0007. Output is limited to factual fields and source links. Independent review, fresh source checks and a private product canary are required before release.