It’s January in Detroit, and that means the world’s automotive press is braving the winter chill to report on the current and future state of the car industry. A big theme at the North American International Auto Show this year: self-driving cars.

Of course, there’s a whole range of time lines when it comes to predicting the widespread adoption of cars that drive themselves around town. At the Consumer Electronics Show in Las Vegas just ahead of the Motor City festivities, Nvidia NVDA, -1.34% and Audi NSU, announced plans to put autonomous cars on the road by 2020. (Here’s what Nividia’s automotive general manager had to say about it to MarketWatch.)