[AlexandrB]

I'm not sure what's impressive about growing revenue in an industry that has no obvious economies of scale. This seems like a case of "sure we lose money on every ride, but we'll make it up with volume!"

Looking at it another way, given a huge funding pool (say $10B) a modestly competent company could outpace both Uber and Lyft in revenue growth by the end of the year simply by subsidizing rides even more. The initial skepticism towards ride sharing services is gone and there's little keeping customers and drivers loyal to either Uber or Lyft.