Vy Buss and Kolumbus to test autonomous bus on public roads in Stavanger, Norway January 31, 2022 | Europe News Vy Buss and Kolumbus have partnered to test Karsan’s Autonomous e-ATAK driverless bus in Stavanger in April 2022. The 8-metre-long bus is classified as a Level 4 autonomous vehicle. It is... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password