cheap fencing

I am thinking lately that I want to enclose the area I have my cars parked at with some kind of fencing.

Its a rural area and most people mind their own business its just that I feel the need to enclose it in so that new comers to the area will have no idea what is there and the subject of old cars will never come up....and if it ever does I can say "what cars...I don't see nuffin"

What do you guys use for fencing and any ideas to get a good looking inconspicuous fence system that is not very expensive and very effective???