Russia’s search engine giant Yandex began testing its driverless car technology in winter weather conditions. Safely navigating various weather conditions is an important part of the development of autonomous transport. As the engineers continue to develop Yandex’s driverless car, they consider all weather conditions and run performance tests looking at a number of factors. Severe winter weather is especially important to test as icy and snow covered roads are not only slippery but difficult to see. After a recent snowfall in the suburbs of Moscow, they tested two Yandex.Taxi driverless car prototypes against winter weather conditions. The prototypes are based on Toyota Prius that were modified to run tests with a help from the NAMI (The Central research and development automobile and engine institute).