
Standards
A wrong fact costs more than a missing one
Authority is won or lost at the top of the market. This page is the house method in the open: what a file contains, the documentation it must clear, where coverage honestly stands, and the rules that decide what may touch a number.
01 · What a file contains
Four layers, one chassis
01
Identity
Chassis number, engine, specification as built — the facts that make this car this car, each carrying its source on the record.
02
Provenance
Owners, sales, restorations, awards and moves, in order, with documents behind them. History that cannot be traced is marked as exactly that.
03
Condition
Inspections and expert reports, bound to the chassis and dated — condition is a reading with an author, never an adjective.
04
The number
The market layer: documented results, the spectrum over comparable sales, and the confidence the record can actually carry.
The reference is the F40 file: 26 documented sales, a census, and every layer above in one place.
02 · Documentation standards
The bar a record must clear
- Every material fact carries its source on the record — a document, a named archive, a dated inspection. Unsourced claims stay off the file.
- Photography meets the house standard: consistent angles, honest light, no retouching that changes the car. Images are records, not advertising.
- Documents are filed as originals — immutable once entered, superseded rather than overwritten, so the file’s history is itself documented.
- Gaps are written down. A missing decade in a chain of ownership is stated on the page, because a confessed gap is information and a hidden one is a defect.
03 · Coverage & gaps
Where the record honestly stands
- Manufacturers on file
- 62
- Models documented
- 219
- Sales in the F40 ledger
- 26
Depth over breadth, deliberately: one car — the F40 — is documented to the standard every file will reach, and the catalogue grows toward it manufacturer by manufacturer. Where a model’s record is thin, its page says so; a stated gap is a work order, not an embarrassment. What is not on the platform is not claimed.

The reference
One car carries the whole method
The F40 file holds every layer this page describes — 26 documented sales, a build board, the census work and the instruments above them. Every file in the catalogue grows toward it.
Open the F40 file04 · How we verify
The rules that touch the number
Review is not an editorial afterthought; it is a product with rules. These are they, in full.
01
Chassis first
Records are built on the individual chassis, never on the model in general. Every material fact carries its source on the record.
02
Estimates disclose their basis
A reasoned estimate shows its anchor comparable, its adjustments and its cross-checks on the page. If the basis cannot be shown, the estimate is not published.
03
Specialists at the top
Above defined value thresholds a named specialist source is mandatory; at the very top, two independent sources — or the record is flagged for manual verification, and shows it.
04
Auction data is weighted, never raw
Results enter with source-trust weights. A manipulated result does not move the number.
05
Research feeds ranges, bids make prices
Research values feed HICON-INDEX ranges only. A published HICON-PRICE comes exclusively from the live engine on real, score-weighted bids — a one-off launches with a disclosed estimate basis and a confidence score, never a fabricated price.
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The partners who verify
Manufacturer registries and archives, factory heritage departments, race archives, long-standing historians, restorers’ build files and our registered experts. Verification work is credited visibly on the record — bring an archive onto the layer.
05 · Glossary
The vocabulary, pinned
- The file
- A vehicle’s complete record on the platform: identity, provenance, condition and market layer for one chassis or one model.
- Chassis record
- The per-vehicle ledger everything binds to — documents, moves, inspections, awards, sales.
- HICON-PRICE
- One exact, evidence-backed value per chassis — never a range. Published only where the record and the rules below can carry it.
- HICON-INDEX
- The research layer: documented results and reasoned ranges per model, with disclosed bases.
- HICON-BID
- Sealed bidding by verified members whose buying power matches the asset. Bids are never public.
- HICON-SCORE
- A member’s documented standing — grows with what the member puts on the record, and unlocks what standing earns.
- The spectrum
- Quantiles over comparable sales, adjusted for condition, history and specification — the honest shape of a model’s market.
- Confidence
- How much weight the record can carry. Thin ledgers make wide spectra, and the figure says so.