Vexia Econav fuel efficient GPS

As well as guiding you from A to B, the Econav from Vexia can also help cut your full consumption too - saving both money and the environment.

Not only will it calculate the most fuel efficient route for your journey but it will advise you on which gear to use and whether you're using the accelerator the best way.

Follow its instructions to the letter and it could cut your petrol bill by up to 30 percent, which should see it pay for itself in no time at all.

The Econav will be available in March from £159.99, see Vexia for further details.