Are these cars legal now?

http://www.latimes.com/business/autos/la-fi-hy-gm-cadillac-super-cruise-20140907-story.html

Quote :

General Motors plans to start selling cars that can drive partially in an auto-pilot mode and that can exchange speed and safety data with similarly equipped vehicles.

The first features are expected to show up in high-end Cadillac vehicles for the 2017 model year -- in about two years -- but over time will move down market into GM’s other brands.

“Everyone recognizes that when cars can talk to each other and share information about speed, direction, operating performance and more, we'll save lives, save time and save money as well,” said Mary Barra, GM’s chief executive, in a speech to the Intelligent Transport Systems World Congress in Detroit on Sunday.

Barra talked about two initiatives the automaker has launched to commercialize “intelligent” car technology.

The system will allow drivers to switch the vehicle into a semi-automated mode in which it will automatically keep the car in its lane, making necessary steering adjustments, and autonomously trigger braking and speed control to maintain a safe distance from other vehicles.

“With Super Cruise, when there's a congestion alert on roads like California's Santa Monica Freeway, you can let the car take over and drive hands-free and feet-free through the worst stop-and-go traffic around,” Barra said. “And if the mood strikes you on the high-speed road from Barstow, California to Las Vegas, you can take a break from the wheel and pedals and let the car do the work.”