Nvidia, the hot graphics chip company that's moving quickly into new markets, said Toyota would be using its chips and software in the carmaker's autonomous vehicles. Tesla already uses Nvidia chips to process the artificial intelligence software that guides its Autopilot technology. Toyota joins Audi, Mercedes, Volvo and other major auto industry players using Nvidia chips for research and production vehicles. "Now we've got the biggest [auto company] in Japan using our drive platform," said Danny Shapiro, senior director of Nvidia's automotive group. Toyota is the second-largest automaker in the world, close on the heels of Volkswagen.