CES 2017: Your car wants to say hello. And that's only the start.

Toyota's empathetic car of the future is there for you. You've had a frustrating day at work; it plays soft music and lowers the temperature. You're lost in an unfamiliar neighborhood; it offers to take over the driving. You start to nod off at the wheel; it taps you on the shoulder and starts up a conversation. This unconventional interplay between the driver and automobile is central to concept cars that Honda and Toyota unveiled at the annual CES technology conference in Las Vegas this week.