I have both HW3 (2021 Y) and HW4 (2025 3). FSD in the HW4 is a delight. FSD in HW3 phantom brakes constantly both back when FSD was a pile of C++ and now with the "Lite" driving model. I don't see how Tesla can ever make FSD suitable on HW3 given the hardware (<200 TOPS).

But how? In the states you can’t even take legal action but are forced into arbitration?