What are some alternatives?
Stretch - Uber for limousines (but it's free)
Skurt - Tap a button, have a rental car delivered.
Ride - Hassle-free ridesharing app with your coworkers
Getaround - Rent exotic cars near you, right from your phone.
shypp.it - The ridesharing for everything
WaiveCar - The world's first all electric and free car-sharing service