Will Uber and Lyft Become Different Things?

Ride-hailing companies are diversifying away from their core business, but right into more direct competition

Photo: Lane Turner/The Boston Globe via Getty Images

For most people, an Uber is a Lyft and a Lyft is an Uber.

Uber’s roots are in the black-car business, while Lyft’s predecessor, Zimride, was a carpooling app. Yet over the last six…