The race to operating fleets of driverless vehicle robotaxis is heating up among a number of significant competitors. But it was actually Amazon (AMZN +1.00%) that recently landed a big win against its competitors. It's a big win for Zoox against Waymo and Tesla, which are also racing to expand their autonomous ride-hailing services. Currently, Tesla's robotaxi ambitions seem more hype than reality, and for investors, that's something that needs to change in the near term. Zoox receiving federal approval and beginning to charge for rides only applies more pressure for Tesla and Waymo.