Tesla has produced the final Model S and Model X units. Tesla

Tesla wrote on X that it produced the final Model S and Model X units.

The cars helped springboard Tesla from a quirky startup to the US's dominant EV seller.

The move also highlights how much Tesla's future is a bet on automation and robots.

Tesla once arranged its core vehicle lineup to spell "S3XY." Now, the company is left with "3Y" — plus the Cybertruck.

Tesla said Saturday that it had produced the final Model S and Model X vehicles at its Fremont, California, factory, ending 14 years of Model S production and 11 years of Model X production.

The retirements aren't a major surprise.…