Tesla launched its robotaxi service in Austin on Sunday as its Model Y vehicles drove around a select batch of riders who gave rave reviews about smooth, convenient rides that were available for the cheap price of $4.20 .

Tesla has started giving rides in driverless Model Y SUVs in Austin. Details are still sparse, but limited service is open to vetted and invited riders.

The automaker deployed a small fleet of self-driving taxis in Austin, Texas, on Sunday, marking the first time its cars have carried paying passengers without human drivers. The rides were being offered for a flat fee of $4.20 in a limited zone.