The average car on UK roads is around seven years old, and over that time it’s likely that deposits will have built up in the vehicle’s engine, reducing efficiency and increasing emissions. This can be minimised by using premium fuels (we’ve seen the evidence ourselves after using Shell’s V-Power petrol)
The Front Seat Driver Test Route has been specially designed to represent normal driving conditions. This is not a test created to produce incredible economy figures, but instead puts each car through a number of different road types. Roughly speaking, there’s an almost equal split between high speed motorway, twisty
Every car we get to test goes round our specially designed Test Route to record its real life fuel economy, more details of which you can find here.