Car Spec Check

Fuel & Emissions

Understand the environmental impact and future running costs of your vehicle.

Eco-Data Efficiency Lookup

Verify MPG, CO2, and Euro Standard classifications instantly.

Live UK Cloud Identity Locked Engineering Data

The Cost of Emissions

In the United Kingdom, a vehicle's CO2 emissions are no longer just an environmental metric—they are a significant financial consideration. A vehicle's CO2 rating (g/km) directly determines its annual Road Tax (VED) and its liability for daily charges in Clean Air Zones.

With the expansion of London's ULEZ (Ultra Low Emission Zone) and similar schemes in cities like Birmingham, Bristol, and Glasgow, knowing your vehicle's Euro Standard is vital for urban drivers.

WLTP vs NEDC

Most cars registered after September 2017 are measured using the more rigorous WLTP cycle. These figures are generally more realistic than the older NEDC laboratory tests, providing a better estimation of your true fuel costs.

Environmental Intel:

CO2 Emissions
Official g/km rating
Euro Standard
e.g. Euro 6, Euro 5
Fuel Economy
MPG (Combined Cycle)
Fuel System
Injection technology type
CAZ Status
Clean Air Zone compliance

ULEZ Compliance

Generally, petrol cars registered after 2005 (Euro 4) and diesel cars registered after September 2015 (Euro 6) are ULEZ compliant. However, some specific variants can surprise you. Always run an official emissions check to be 100% certain of your status.