According to Jeff Dean on Twitter, Waymo's autonomous vehicles allow passengers to ride in the front passenger seat and enable pre-configuration of legroom settings through the Waymo app. This AI-powered feature allows users to select their preferred legroom—front, balanced, or rear—before the vehicle arrives, enhancing rider comfort and flexibility. The capability demonstrates how AI-driven mobility services are focusing on user experience personalization, a significant development that could influence broader adoption of autonomous vehicles and open new business opportunities for custom ride-hailing services (source: Jeff Dean, Twitter).