Model not performant and limited sensory equipment ・Multiple Cameras ・LiDAR ・Radar ・HD Map 2nd Gen (CNN, Rule-based) HD map and if-then logic as critical limitations ・Multiple Cameras ・Behavior Cloning Model performant but still issues handling edge cases 3rd Gen (Transformer, E2E) ・Multiple Cameras ・Language based UI ・LLM/World Model Model can finally handle all situations and edge cases 4th Gen (LLM, E2E) 2012 2017 2021 2025 8