An autonomous car is the main vision of the automotive industry for the next decade. Implementing intermediate milestones through advanced driver assistance (ADAS) functions is essential to achieve a fully autonomous car. From the industry point of view, realizing the new technology needs with reasonable costs is a key requirement for deploying autonomous cars on a large scale. As a result, ADAS sensor architectures are evolving to support the implementation of growing autonomous functions on car platforms. This presentation will provide a comprehensive overview of how the ADAS electronic control unit (ECU) architectures have evolved and changed in different vehicle segments during the past decade and the sensor architectures for the car of future—if "smart" or "dumb?" The focus of the talk will also be on the key semiconductor technologies enabling newer ECU architectures, the challenges related to sensor fusion, and the consequent impact on automotive supply chain.