April 18 : Tesla is rolling out its robotaxis in Dallas and Houston, the electric vehicle maker said on Saturday, marking further expansion of its nascent service in the United States since its Austin, Texas, launch last year. Tesla's official robotaxi account on X announced the launch and posted two videos showing its best-selling Model Y SUVs running in the two cities with no human driver or monitor in the front seats. It posted two map images outlining service boundaries, but did not