With the rapid evolution of fully autonomous vehicles, traditional driver-centric interfaces have become obsolete—leaving passengers in a space that often lacks clarity, trust, and inclusivity. Our project began with a simple premise: in a car without a driver, the interface must become the guide, communicator, and companion. Through interviews, usability research, and accessibility frameworks, we uncovered the unique cognitive and physical needs of diverse passengers. The result was a reimagined in-vehicle interface—voice-enabled, spatially aware, and empathetically designed—to create a smoother, more intuitive ride experience for everyone.