A Volkswagen executive has stated that fully self-driving cars, also known as Level 5 autonomy, may never happen due to the complexity of the problem. The executive, Alex Hitzinger, compared achieving Level 5 autonomy to going to Mars, emphasizing the difficulty of the task. Volkswagen is instead focusing on achieving Level 4 autonomy, which would allow for autonomous driving in certain conditions. The company plans to implement this technology in its upcoming I.D. Buzz electric van.