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 country roads and urban driving.
This is not a scientific test, however. Instead, it is used to represent real driving, so there are no efforts made to drive unusually economically and there are no set speeds to drive at. Through the country roads you might naturally be going quicker in a Toyota GT86 than you would in a Smart fortwo and so the driving represents that.
The end result is an economy figure that any driver would realistically expect to achieve over mixed roads. It will almost certainly be lower than the official figures, but the gap can sometimes be surprising so we record that on the results page in a percentage form.
We accept that this is not a perfect answer to the issues of recording fuel economy, but it at least allows a reasonably consistent test to measure vehicles against.
To see what results our tests have come up with so far, click here.