Driving green is totally different to driving fast, and the Econav, from Vexia, knows it. The Econav will deliver you exactly the same speed, traffic and gear change info as a regular sat nav, but instead of showing you the fastest way to go, it’ll show you the most economical.

For example, if you’ve got a carful of people, then it’s going to be much better for you to use a motorway than country roads. It’ll take into account your car, fuel and occupancy level. The manufacturers claim that it’ll pay for itself in reduced fuel usage within six months. The price? £200. If you’re not often in a hurry, then it could be worth a look.

Vexia (via ShinyShiny)