Nvidia CEO Jensen Huang expects the company he founded in 1993 to play a key role in future self-driving vehicles. To do it, he wants to put together the "brain" of autonomous-driving systems. Huang, 57, predicts it will be commonplace for automakers to sell new cars at cost within four years because profits will instead come from the manufacturer's proprietary software. He recently shared his vision in a video chat with Automotive News Europe Associate Publisher and Editor Luca Ciferri and Managing Editor Douglas A. Bolduc. Here are edited excerpts.