# API Release - v3.4.0

> UK highway, city and combined MPG fields with range filters, and UK similar cars search by VRM.



## New features

1. **Fix Highway and City MPG Filters in UK API**
2. Added support for UK-specific fuel efficiency fields in the Search API response.
3. Fields added: highway_mpg, city_mpg, combined_mpg
4. Enabled range filters on these fields with parameters: highway_mpg_range, city_mpg_range, combined_mpg_range
5. **UK API - Similar Cars Search Using VRM**
6. Introduced support for the vrm parameter in the UK Search API to find similar listings based on Vehicle Registration Mark (VRM).
7. Added support for matching similar cars with additional parameters
8. Documentation**:** [UK Similar Cars API](https://apidocs.marketcheck.uk/#8509c8b2-7a14-4309-839b-b35b56d18c30)