Tesla Inc. CEO Elon Musk famously served as the inspiration for Robert Downey Jr.'s depiction of billionaire genius Tony Stark in Marvel's "Iron Man" movies. Now he's trying to avoid a real-life Ultron moment. In the fictional Marvel universe, Stark originally designed Ultron, an artificial intelligence program, to protect Earth. But when it gained sentience, it turned on its creators and attempted to destroy humanity. Musk doesn't think it's the stuff of fiction.

IBM's foray into autonomous car design focuses on people with disabilities. The technology company last year unveiled its Watson-powered self-driving shuttle, called Olli. Sachin Lulla, global vice president for automotive strategy and solutions leader at IBM, said it's an example of the company's focus on providing personalized experiences for those who may otherwise struggle to drive. "This was a big experiment for IBM," he said Wednesday at the CAR Management Briefing Seminars. "We wanted to build the world's most accessible vehicle."