[nobodyspecial]

Buying a car that is for sell by a rental company may not be the best purchase you have ever made.
Do you remember the last car you rented> How well did you take care of it?
How about all of the people before you? Was the car damaged in the past?
Do you really know who well or how bad this car was treated so far?
Used rentals are a BIG risk.
Buying a car at the lowest possible price:

Do all of your research on-line.
Go drive the car you want at a dealership.
Get a list of the seven closest dealers concerning the exact car you want.
Email all seven delaers. Give them the exact specs on the car you want and ask for their bid. Let them know that you will be accepting the lowest bid you get.
You may want to email and hold a second round to get the dealers down even further,
Now and only now are you ready to go to the dealership.
The above has proven to work many times.
If you go to any dealer to buy a car, you are in their territory and they know everything that works on humans. Stay away at all costs until you are ready.
You can win at this as long as you take control of the process.