Improvements to our valuations.

Great news! We’ve improved the valuations delivered through your VRM Valuation API

What’s changed?

We evolved our valuation methodology to deliver more market-aligned insights that support strategic planning. These updates ensure your products continue to provide the precision and reliability you expect.

As part of our broader methodology enhancements, we introduced important updates to the VRM Valuation API on 1 December 2025.
These improvements ensure your valuations reflect real-time market performance with greater accuracy and consistency.

Key changes:

1. Legacy Calculation Modes

From 1 December 2025, legacy calculation modes – including Grade, Condition and Sector-specific values – are no longer supported.
These modes have been replaced to align with our unified, market-responsive valuation approach.

If you previously used these values, your integrations should now be updated to rely on the Standard Trade and Standard Retail values.

2. Average Mileage

Mileage corrections are now fully integrated into Glass’s Trade and Retail values using real-time market data.

As part of the update:

The average mileage parameter is no longer returned in the API.
If you require average mileage figures, they should be sourced from an external market-reliable provider.
Average mileage alone cannot represent full market dynamics, which are now captured through our enhanced methodology.

3. Basic Residual Value / Mileage Correction

Because the average mileage parameter has been removed, the API no longer returns Basic Residual Values or separate mileage corrections.

Valuations are now based entirely on real-time market data, with mileage adjustments fully integrated into the Trade and Retail values.

What to keep in mind

Action required

Review your systems to ensure they now use Standard Trade and Standard Retail values.
Visit our FAQ section for more information about how these changes may affect your integration.

Support and documentation

If you previously relied on any data fields that are no longer supported, our Integration Team can help.
Contact us at customer@autovistagroup.com.

We’re confident these improvements bring significant value to your workflow. Thank you for your continued partnership.

The image shows the API methods supported following the update.

FAQs

Currently, legacy calculation modes (e.g., Grade Low, Average, High, and others highlighted in grey in the table) provide useful references for valuing vehicles based on condition, cosmetic needs, or specific industry use. These modes will no longer be supported after 1 December 2025 as part of our transition to a more dynamic valuation methodology.

From this date, only Standard Trade and Retail valuations will be available via the API. Requests for discontinued modes will return either a ‘0’ value or an error message stating ‘calculation mode no longer supported.’

To ensure a seamless transition, customers must update their systems to use the Standard calculation mode. For vehicles previously classified under legacy modes, you can:

Adjust Standard Trade or Retail values: Apply value-increasing or decreasing factors using your internal pricing logic to account for vehicle condition, repair needs, or other specific considerations.
Leverage Repair Estimate insights: Repair Estimate can help assess the costs of cosmetic, trim, and Bodyshop repairs, providing a robust foundation for refining valuations. This ensures your pricing stays aligned with market trends and reflects a vehicle’s specific condition. If you’re interested in this feature, please contact our Sales Team.

By transitioning to the Standard calculation mode and incorporating these tools, you can maintain accurate, competitive, and market-relevant valuations even as legacy modes are phased out.

As part of our transition to a more dynamic valuation methodology, certain legacy calculation modes, including Grade Low, Average, High, and others highlighted in grey in the table, will no longer be supported after 1 December 2025. These calculation modes, which were previously useful for valuing vehicles based on condition, cosmetic needs, or specific industry use, will be discontinued.

From this point, only Standard Trade and Retail valuations will be available through the API. Requests for the discontinued modes will return either a ‘0’ value or an error message stating, “calculation mode no longer supported.”

Additionally, as average mileage will no longer be available, the API will no longer provide a basic value using an average mileage. Specifically, BasicResidualValue and AverageMileage will return a ‘0’ value after the launch on 1 December 2025.

Mileage corrections will now be directly incorporated into Glass’s Trade and Retail values, removing the need for a fixed “standard mileage.” Adjustments will instead be based on real-time market observations, providing a more accurate and up-to-date reflection of vehicle values.

This new, AI-driven approach, supported by our expert editor team, offers a comprehensive, data-driven view of the market, reflecting real-world pricing trends and empowering you to make more confident, informed decisions.

If you have identified that you are using calculation modes that will no longer be supported, our Integration Team is available to assist with any technical queries you may have. Additionally, detailed technical support documentation for APIs is available to help guide you through any changes. If you need further assistance, please contact our Customer Experience Team at customer@autovistagroup.com, detailing your query, and a member of our team will reach out to support you.

LOW
AVERAGE
HIGH
PRIVATE
DEALER
CONSUMER_EX
CONSUMER_AV
CONSUMER_BA
LOW_MILEAGE (LCV Only)
“DISPOSAL
(LCV Only)”

Mileage correction factors will be removed, as exact mileage is now fully integrated into our core valuation methodology. This eliminates the need for additional mileage adjustments, simplifying your processes and ensuring valuations remain accurate.

Our standard Retail value utilising our data AI-driven system, supported by our expert editor team using real time market observational data. This ensures your pricing remains precise, competitive, and aligned with market conditions

Trade valuations will continue to be based on robust market data and refined to provide accurate and reliable insights. This ensures dealers and traders have a dependable foundation for assessing vehicle values and making informed pricing decisions in today’s dynamic market.

Mileage corrections are now directly incorporated into Glass’s Trade and Retail values, making them fully data-driven. Instead of relying on fixed values for mileage corrections, adjustments are based on real-time market observations.

As a result, there will no longer be a fixed “standard mileage,” and a value based on an average mileage will not be provided separately. Powered by an AI-driven system and supported by our expert editor team, this approach delivers a reliable, comprehensive view of the market, reflecting real-world pricing trends and supporting confident decision-making.

We are committed to keeping you informed as we roll out these improvements. You will receive regular updates about specific product changes, ensuring you’re always up to date on key adjustments and new features. These updates will be sent to you over the course of the next several months, with the goal of aligning the changes by 1 December 2025. Rest assured, we’ll provide timely information on how these updates will impact your usage and experience with the product.

We plan to have all updates fully implemented by 1 December 2025. A scheduled maintenance weekend (28–30 November) will support this transition. As we move forward, we’ll keep you informed with regular updates about the specific timelines for each stage of the rollout, so you can stay ahead of any changes affecting your product experience.

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