Uber Technologies Inc. is preparing to offer driverless rides on vehicles developed by Lucid Group Inc. and Nuro Inc. in the San Francisco Bay Area for the first time next year, thrusting the company into direct competition with Waymo’s robotaxi service.Road testing of the vehicles — Lucid Gravity SUVs outfitted with Nuro’s self-driving technology — is currently underway with drivers manually operating them, a Nuro spokesperson said. The first cars in the test fleet were delivered in September, and the numb ...