Eco Pedal

The Technology package-equipped M56 has a feature called Eco Pedal. When the Drive mode is set to Eco and this feature is active, a servo in the accelerator adds resistance to the pedal travel to discourage lead-footedness. Give it too much gas and the Eco Pedal will even push back on your foot, recommending haptically that you take it easy. This resistance is easy enough to push through for those moments when you genuinely need to get up and go now, but the feeling that the car doesn't want to do what you tell it and the slight hesitation this system causes made freeway merges in this 420-horsepower sport sedan a bit uneasy.