Tesla's HW4 FSD vastly outperforms HW3 in tricky maneuvers, leaving older owners disadvantaged, while the video clarifies Robotaxi limits and questions FSD's true safety metrics.
This video compares Tesla’s Full Self-Driving on Hardware 3 versus Hardware 4, showing a night-and-day difference: Hardware 4 confidently reverses into a tight garage in the rain—even adjusting its mirror—while Hardware 3 repeatedly fails, lacks the “brain power” to start from a standstill or back up, and even misses the garage entirely. The host argues that owners who paid for FSD years ago may already be stuck on inferior hardware, since the system improves unevenly across platforms and regions. Another key point is the misconception that personal FSD equals a Robotaxi: a Robotaxi only masters a controlled slice of the environment, whereas personal FSD must handle the entire world under driver supervision. Tesla is moving toward removing driver monitoring within a year or two, and the broader debate is whether FSD is truly safer than humans—though Tesla and regulators may not even measure collisions the same way.
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