The race to redefine urban travel has captured the market's attention, driving shares of leading electric air taxi companies up more than 120% in the past year. This investor excitement is chasing a massive opportunity: building fleets of quiet, all-electric aircraft to soar over traffic-clogged cities. In the United States, two rivals have emerged as the clear front-runners: Joby Aviation NYSE: JOBY and Archer Aviation NYSE: ACHR. While both companies aim for the same sky, they follow remarkably different ...