What is ford lug pattern?

I saw a ford 500 with 17" rims. I'm curious what the bolt pattern/lug pattern is on the cars?

The bolt pattern/bolt circle is 5-114.
In plain english this means the rim has
5 lugs
4.50" bolt circle.
Bolt circle is measured from one lug nut hole to another.To make it easier to understand, click the link below and look at the diagram where it shows a 5 lug rim being measured.Backspace and offset are other important numbers to be able to measure.
http://www.tirerack.com/wheels/tech/techpage.jsp?techid=92&