Specifically, Uber and Lyft both take anywhere from a 20 to 25 percent cut of each ride, but once you factor in marketing costs or the never-ending stream of free promotions and discounted fares, some of those rides actually net out to zero dollars in revenue for the company. Still, the Times' sources reiterate that Lyft's stockpile of cash is a good indicator that it's not actually in danger of disappearing anytime soon. In May, Lyft also announced plans to test a self-driving fleet sometime in the next year, but Uber is already looking to beat it to the punch.