Tesla is racing toward its planned robotaxi debut in June, with hundreds of test drivers quietly laying the groundwork across Austin. Over the past few months, about 300 Tesla test operators have been driving through the city's streets around the clock using prototypes of the company's self-driving software as a part of the program the company internally calls "Project Rodeo."In the months leading up to the launch, Tesla has held a training event with local first responders, worked to build up "critical mi ...