The event was criticized by some prominent observers as being more style than substance, lacking precise details on timelines, costs,

Ever the showman, as well as one of the most successful entrepreneurs of our time, Musk used a Warner Bros movie lot to show off a prototype of what is now being called the Cybercab. This version was a sleek, silver, two-seater without the familiar steering wheel or pedals of a traditional car.

Tesla unveiled its self-driving taxi, Cybercab along with a van model during 'We, Robot' event Thursday night.