Part 2/13:
First, it’s possible Tesla is preparing to launch a compact vehicle based on Saber Cab's design but with a steering wheel—potentially for testing or regulatory compliance purposes. The vehicle might share underlying architecture with the Cybertruck and now requires this hardware for inspection or validation, explaining the extra component during testing.
Second, Tesla could still be genuinely working towards achieving full self-driving (FSD) safety milestones but hasn't yet attained the level of safety necessary to forego the steering wheel entirely. Until then, having a steering wheel remains essential for safety and testing continuity.