The Nissan Eco Pedal helps you to save gas by pressing the gas pedal upward when the vehicle is moving too quickly for it’s own good. Nissan claims that the system can improve fuel efficiency by as much as 10%.

The Eco Pedal is programmed to calculate the most efficient rate of acceleration in a given vehicle, so it’s not for those with a lead foot. That’s why Nissan included the option to disable it when necessary. I imagine it would give your leg a good workout as well. You push, it pushes back. Hopefully your wallet will get thicker so you can buy more gadgets.

[Jalopnik]