Aston Martin only car to meet advertised MPG

ASTON MARTIN’S gas-guzzling Vantage sports car is the only vehicle to achieve its advertised fuel consumption, according to new research.

A study by testing company Emissions Analytics found that the 190mph 2014 vehicle managed 21.5 miles per gallon, beating the manufacturer’s claim of 20.5, according to the official testing regime.

On-the-road tests conducted by Emissions Analytics found that, on average, certified fuel consumption figures released by car manufacturers were out by 30pc.

Even new official tests being introduced next year are likely to underestimate the amount of fuel cars will burn in real-world driving conditions.

Nick Molden, chief executive of Emissions Analytics, said: “We are trying to rebuild confidence in fuel consumption figures after ‘dieselgate’. Our tests are more realistic because we do them on the road, not in a laboratory like the current and incoming tests.”

The company’s database of the performance of 60,000 makes and models of vehicles showed that in the past two years, only Aston Martin’s 4.7-litre Vantage Coupe achieved official figures.

Honda’s 1.6-litre Civic was the best-performing car, achieving 61.8mpg in Emissions Analytics’ tests. However, the model’s official figure was 78.5mpg – a 21.3pc difference.

Britain’s best-selling car, the Ford Fiesta, managed 37.8mpg, against an official figure of 62.8mpg for the petrol version.

The worst-performing was BMW’s X5, at 16.2mpg when tested by Emissions Analytics, as opposed to 25.4mpg in official figures.