What “Engine v10” means for your valuations
Every Caravan Guide valuation is produced using a structured, versioned methodology. The engine version shows which set of rules, checks, and logic were used to generate that number.
Why this matters
Structured, not reactive
Valuations are produced using consistent rules, not driven directly by short-term listing fluctuations or market noise.
Explainable outputs
Alongside the “Why?” breakdown, the engine version helps show how and when the valuation logic was applied.
Consistent over time
Versioning ensures valuations remain stable, traceable, and comparable across different quarters.
What “Engine v10” actually is
In the Why? breakdown for a model, you may see a label such as Engine v10 next to the published quarter.
This is a version label for the valuation methodology used to produce that guide row. It is not a product name and it is not a public formula.
Think of it like a software version. When we make meaningful improvements to how prices are calculated, validated, or structured, the engine version increases.
This means the valuation was produced using the rules and checks defined in Engine v10.
Why engine versions change
We increase the version when we improve how valuations are produced.
- Refinements to how RRP, age, and tier data are applied
- Calibration improvements for consistency across models
- Enhancements to validation and quality checks
- Structural improvements to valuation logic
Each guide row records the version used, allowing valuations to be traced back to the exact methodology that produced them.
What an older version means
If a valuation shows an older engine version, it usually means that specific row has not been regenerated since a newer version was introduced.
This is normal. It does not mean the valuation is incorrect - it means the figure reflects the methodology version shown at the time it was produced.
How guide prices work provide additional context when interpreting values.
Why we show the version
Caravan Guide is designed to produce valuations that are consistent, explainable, and defensible.
The engine version is part of that transparency. It shows that each valuation is generated using a controlled, repeatable process - not subjective judgement or short-term market behaviour.
Built specifically for the static caravan market, the system is structured to handle model variations, layouts, and historical depreciation in a way generic tools often cannot.
Built for real-world decisions
In professional environments, valuations often need to be explained, justified, and sometimes defended.
The engine version, combined with the “Why?” breakdown, provides a clear audit trail showing how a valuation was produced - using a structured methodology applied consistently across models.
This allows decisions to be based on a transparent process, rather than relying purely on market behaviour or opaque calculations.
Why we do not publish the full formula
We do not publish the full valuation methodology, coefficients, or internal research. This is part of our intellectual and commercial investment.
More importantly, publishing the full system would make it easier to manipulate or imitate, reducing trust in the outputs.
The version label gives you visibility into how valuations are produced - without exposing the underlying engine itself.