Personally I would not do a car that cheap and between all the materials, prep, tape, etc to do it RIGHT, I think that is a great price. I would ask how much material you are getting for that price, though. You should do 2.5-3 gallons for a car the size of the XF to be done well and able to be peeled off, just FYI.

If you do pull the trigger, post some pictures!