autonomous cars don't know how to drive in adverse weather conditions

At your own image: autonomous cars don't know how to drive in adverse weather conditions -yet:



Weather-related challenges for autonomous cars are nearly all in perception. Wet roads are an issue, but so is heavy fog, rain, and snow. Combining any of these conditions with darkness only compounds the problem. Autonomous cars generally understand the rules of the road, and they know what to do and what not to do in virtually any situation that they might face. But if they don’t have enough accurate information from their sensors, any decision that they make is likely to be a poor one...

Source: http://spectrum.ieee.org/cars-that-think/transportation/advanced-cars/japan-competition-shows-weather-still-a-challenge-for-autonomous-cars