Sean Gallup; Marc Piasecki/Getty Images
Elon Musk said on Tuesday that Waymo robotaxis cost more money to build.The Tesla CEO said his company has the upper hand because of its ability to scale quickly.Ex-Waymo CEO John Krafcik told BI that Tesla still has a lot to prove.Tesla CEO Elon Musk took multiple digs at one of his biggest competitors in the robotaxi race, Waymo, during Tuesday's earnings...