Evolving our proven valuation methodology

What is changing in the valuation methodology?
We are updating our valuation methodology to align values to an updated valuation methodology that replaces older calculation approaches clearer market-aligned transaction valuations from the UK market.

This means that, we are moving away from advertised (retail asking) prices, our valuations will now reflect actual selling prices (retail transacted). 

Which products are affected by this change?
The update applies to most valuation products currently using retail asking or mixed (asking + transacted) data.
Products already based on transacted values, such as MVA, will remain unchanged.

When will this change take effect?
The rollout will complete from 1 December 2025, with updates applied automatically to the relevant products. No configuration or manual action will be required from customers.

A scheduled maintenance weekend 28–30 November will support this transition. 

Why are you moving from retail asking to retail transacted values?
The automotive market has become increasingly dynamic, with prices shifting rapidly due to digitalisation, online sales platforms, and greater transparency.
Advertised prices (asking values) often differ from what vehicles actually sell for.
By moving to retail transacted, our valuations: 

• Reflect real market behaviour, not just listings. 

• Offer a clearer, data-driven view of the used car market. 

• Provide a consistent standard across all products in line with our Common Valuation Methodology. 

Does this mean previous valuations were wrong?
No.
Previous valuations were based on retail asking, which was the appropriate approach at the time.
This update is a natural evolution of our methodology, reflecting how the market and data sources have developed – not a correction of past values. 

What benefits does this bring to customers?
Moving to retail transacted, means our customers benefit from: 

• More realistic valuations based on what vehicles actually sell for. 

• Fairer outcomes supporting accurate insurance and finance decisions. 

• Improved planning with realistic foundations for depreciation and TCO models. 

• Greater trust and transparency aligned with real market performance. 

How will this impact the values I currently see?
For some products, values may appear slightly lower than before, typically within a moderate range (around 2–8%), depending on vehicle type and market conditions.
This does not represent a loss of value but a more accurate reflection of current market dynamics. 

How will this affect products that already use retail transacted values (e.g. MVA)?
Your product already reflects Retail Transacted values. You may notice some changes due to improved mileage and age adjustments, based on trade and retail market observations interpreted by our expert analysts. Previous values weren’t incorrect, the updated valuation methodology improves how these factors contribute to the valuation 

What about products that use both retail asking and transacted values (e.g. VRM Valuation API, AutovistaValuation API)?
These products will now show a single unified retail value, retail transacted, ensuring consistency and transparency. 

How will this affect products based only on retail asking values (e.g. Car Cost Expert, Compare, Residual Value Monitor, Residual Value Intelligence)?
These products will transition fully to retail transacted values, bringing their valuations in line with the rest of the portfolio.
This change is expected to produce the most visible value adjustments. 

What about Glass’s and AutovistaSPOT API?
These products will retain their Live Retail functionality, which provides real-time competitive market tracking.
However, their fallback values (used when live data is not available) will now be aligned with retail transacted values for consistency across the suite.