They mention the VSA modulator. All of the "high tech" electronic magic like ACC and CMBS work through the VSA modulator. I suspect, but don't know, that Brake Hold does as well (maybe that's why the ten minute time out--to bound active time of the modulator).I thought this whole car is drive by wire? That is how it can do the brake hold and adaptive cruse control stuff? It didn't look like any of that was in the video.