Your self-driving car of the future is going to need a lot of sensors to handle the snow

A group of researchers at the VTT Technical Research Centre of Finland say they have specifically designed a car for demanding weather conditions. On Friday, they announced that the car, named Martti, had successfully completed an autonomous drive through a snow-covered public road, and at a good pace, hitting 40 km per hour (25 mph). They claim it is the first fully autonomous car to do so.
Whereas most self-driving cars use LIDAR to capture and parse their surroundings, Martti relies more on radar because LIDAR isn’t as effective with snowy roads.