China AutoLedger · 2026
Index

Methodology / Public data contract

HOW A FACT
EARNS ITS PLACE.

A public record of source eligibility, status, comparability, freshness, history and corrections.Source eligibility, status, comparability, freshness, history and corrections.

Version 0.1 · Effective 31 AUG 2026
Owner · Project Lead

THE SOURCE IS PART
OF THE PRODUCT.

A number without its market, period, definition and source is not a publishable fact. Normalization may assist reading, but it cannot erase context.A number without market, period, definition and source is not publishable.

Publisher
China Auto Ledger
Editorial review
Project Lead
Correction route
Prepare an evidence report
Editorial contact
data@chinaautoledger.com
Policy
Prior record, reason, reviewer and replacement retained

Source eligibility

A source is eligible only when access rights, publication authority, stable identity and retrieval evidence are documented. Official public sources are preferred. A discovered page is not automatically a reusable dataset.

ELIGIBLE · official public release or licensed feedREJECTED · unverifiable repost, unstable page, prohibited reuse

Status definitions

Observed, announced, available, discontinued and corrected describe different states. Each state needs an effective time and source. A launch announcement does not prove retail availability.

OBSERVED · captured from an eligible sourceANNOUNCED · formally communicatedAVAILABLE · market-retail evidence confirmed

Comparability

Cross-market values are shown together only when price type, trim, equipment, drivetrain and range standard are named. A visible comparison may still be explicitly marked not comparable.

PRICE · MSRP, OTR and transaction price remain distinctRANGE · CLTC, WLTP and EPA remain distinct

Freshness and history

Every fact carries checked-at and, where known, effective-from. New values create history rather than overwriting the record. Missing periods remain missing.

FRESHNESS · source-specific service levelHISTORY · prior facts retained with dates

FX and corrections

Currency helpers display provider, rate and timestamp. Corrections create a new event with reason and reviewer. The original record remains addressable.

FX · helper value onlyCORRECTION · reason, reviewer, prior value, replacement

Public correction entry

Prepare the evidence, not a promise.

This tool creates a structured packet in your browser. It does not transmit data, create a ticket or claim that a correction has been accepted.

Frequently asked questions

What does registered vehicle stock mean?

Registered vehicle stock counts vehicles present on an official register at a stated census date. It is not a count of sales, deliveries or new registrations during a period. The Australian records on this site retain that census-date definition.

Why are Australia and Great Britain values not compared?

The Australian value is registered stock on a census date. The Great Britain value is first-registration events during a calendar quarter. Different statistical subjects and time grains make a ratio, premium, ranking or trend misleading, even though both values use vehicles as the unit.

How are corrections handled?

A verified correction creates a new revision or event containing its reason, reviewer, prior value and replacement. The prior record remains traceable instead of being silently overwritten. Reports should identify the exact page, claim and official evidence.