The newest addition to Tesla’s fleet of robotaxis is now on the road. Previously, Tesla’s driverless taxi service offered only one make of vehicle, called the Model Y. Now, it’s adding the Cybercab, a golden car with butterfly doors, interactive touchscreens, and no steering wheel.

Federal auto safety regulators have launched an investigation into Tesla’s rollout of its self-driving Cybercab, a potential headwind for Elon Musk as he aims to shift the automaker’s focus to autonomous vehicles and humanoid robots.