Just a day after Tesla’s wheel-free taxis hit the streets of Austin, Texas, the ride is already facing a regulatory speed bump. The US auto safety regulator has opened an investigation into whether the new vehicles, which lack steering wheels, mirrors and brake pedals typically required in vehicles, comply with federal safety rules.

AUSTIN, Texas, Sept 3 : Tesla said on Thursday it was offering rides in "limited areas of Austin, Texas" in its two-seater Cybercab, a vehicle without a steering wheel or pedals,…

Tesla has deployed dozens of steering-wheel-free Cybercabs in Austin as Elon Musk seeks to expand its robotaxi service and catch self-driving rival Waymo.