There’s a battle for the future of transportation being waged outside our offices and homes. Uber and a growing collection of well-funded startups, such as the ride-sharing service Lyft, are trying to make getting a taxi as easy as booking a reservation on OpenTable or checking a price on Amazon.com —just another thing you do with your smartphone. Flush with Silicon Valley venture capital, these companies have an even grander ambition: They want to make owning a car completely unnecessary. They’re battling each other, city regulators, entrenched taxi interests, and critics who claim they are succeeding only because they run roughshod over laws meant to protect public safety. My latest Bloomberg Businessweek cover story is posted here.