Hmm, sounds like a great idea, except that they should do this with cheaper, used cars. if you have bad credit, you shouldn't be buying a brand new car.
Vehicles requirements for Xchange Leasing program:
2009 or newer
75,000 or less miles
no salvage, rebuilt or flood vehicle titles
4 full-sized doors
minimum of 5 seatbelts (driver and 4 passengers)
maximum amount financed $20,000 (subject to change)
1 - https://get.uber.com/cl/xchange/Can you elaborate? I don't see how that follows.