Analysis of fuel economy rates reveal a five percent increase in the gap between official and real-world mpg, reaching 29% in 2016.
The use of ‘clever maths’ has overcome the challenge of finding accurate fuel consumption figures to deliver real-world data for more than 60,000 cars and air quality ratings for hundreds more.
UK-based Emissions Analytics has confirmed the gap between the current legal emissions testing regime and real-world testing.
