For the "better cruise control" aspect, I can envision the user interface giving the drive the illusion of driving in a rut in the road. So that when the car d

For the "better cruise control" aspect, I can envision the user interface giving the drive the illusion of driving in a rut in the road. So that when the car drifts to one of the lane edges, there would be a slight tug on the steering wheel similar to what you would feel if the road was cupped -- but something you can easily overcome if you intend to.