Car maker Toyota has produced a free app for the iPhone called A Glass of Water to help you drive in a more environmentally friendly manner.

The idea comes from the suggestion that if everyone drove with a glass of water on their dashboard and drove like they didn’t want to spill a drop then fuel consumption would go down 10%.

The app records your driving distance, time, fuel consumption and amount of ‘water’ spilled. After each journey you can go on the website which analyses your drive and makes suggestions on how you can reduce your power consumption. And you can compete with your friends too.

Check out the website here.

Spotted via Springwise.