3research

Welcome to the home of UK Vehicle CO2 Emissions and MPG Data.

Since 2006, 3research has been providing UK consumers with the knowledge they need to make informed car buying decisions. With road tax now free for vehicles outputting up to 100 C02 g/km, and with fuel costs on the increase, the data 3research provides is more valuable than ever.

As well as a detailed breakdown of vehicle information for every vehicle sold in the UK, you can also access our useful League Tables to see the best performing cars for fuel efficiency and CO2 Emissions:

• Fuel Efficiency League Table (Top Cars by MPG)
• CO2 Emissions League Table (Cars with up to 100 g/km CO2)
• Best Cars by Owner Reviews