FILE - In this Wednesday, March 18, 2015, file photo, the Uber application displays cars available for a pick up at 100 Centre St on a cell phone in New York. In four years Uber has gone from nearly non-existent to more than 26,000 drivers, joining over 13, 000 New York City taxis.
FILE - In this Wednesday, March 18, 2015, file photo, the Uber application displays cars available for a pick up at 100 Centre St on a cell phone in New York. In four years Uber has gone from nearly non-existent to more than 26,000 drivers, joining over 13, 000 New York City taxis. Mary Altaffer AP
FILE - In this Wednesday, March 18, 2015, file photo, the Uber application displays cars available for a pick up at 100 Centre St on a cell phone in New York. In four years Uber has gone from nearly non-existent to more than 26,000 drivers, joining over 13, 000 New York City taxis. Mary Altaffer AP