Achieving full vehicle autonomy is not just about adding sensors or compute-it requires a fundamental shift in how vehicles are architected. Autonomous systems rely on higher-resolution sensors, massive processing power, and the ability to fuse data from multiple sources in real time. Centralized in-vehicle architectures, which consolidate computing and enable sensor fusion, place unprecedented demands on connectivity. Precise time synchronization across all systems becomes critical, as does advanced control to ensure safe and reliable operation. Any delay or data loss can impact decision-making, making robust, resilient communication links essential. High-performance connectivity is the backbone of this evolution. It must deliver the highest bandwidth to handle massive streams of sensor data, support long-reach connections across the vehicle, and maintain error-free performance even in the most challenging electromagnetic environments. This combination of speed, reach, and reliability forms the foundation that enables autonomous driving to move from concept to reality. In this presentation, we will explore how MIPI A-PHY addresses these challenges, enabling long-reach, high-bandwidth, and highly reliable connections for next-generation vehicles. We will cover its role in centralized architectures and how it supports sensor fusion and advanced driver-assistance systems. We will also review the breadth of the A-PHY ecosystem, including A-PHY-based platforms, cameras, radars, silicon, cables & connectors, and testing companies.