Caddilac has had this for years for their driver assistance system. It cuts out if you look away from the road. > https://www.autoevolution.com/news/how-cadill

Caddilac has had this for years for their driver assistance system. It cuts out if you look away from the road. > https://www.autoevolution.com/news/how-cadillac-super-cruise-hands-free-driving-system-works-134397.html https://www.autoevolution.com/news/how-cadillac-super-cruise... > It also keeps track of whether the driver is paying attention to the road. Unique to Super Cruise is that it does this not by requiring the driver to keep his hands or touch the steering wheel, but by tracking the driver’s eyes and head position. > Despite being capable of handling the car on its own, Super Cruise will not work unless it detects the driver is paying attention to the road. In Cadillac’s case, that doesn’t mean necessarily having the hands on the steering wheel, but keeping the eyes looking forward.