Very good price, usually around $250. Unsure how long this deal will last.
These are model specific, make sure you buy the right one.
The iDrive gives you the power to tune the signal from the accelerator pedal. It has multiple inbuilt settings to cover a variety of driving styles including; Eco Mode As the name suggests this setting is designed for economy in mind by reducing the accelerator response time
Everyone in the Ford Everest Facebook group raves about these and say it the best mode they have made. I have not picked on up though, and YMMV. Really wished they did a money back/satisfaction guarantee so I could see for myself.