Mercedes had a version of this called a "haptic pedal" in their previous gen C-Class PHEV. It would provide a small bump of resistance before you engaged the g

Mercedes had a version of this called a "haptic pedal" in their previous gen C-Class PHEV. It would provide a small bump of resistance before you engaged the gas engine. It also would gently push back when it saw the car ahead was slowing down, to encourage efficient coasting. A quick search shows they spread it to a few other cars.