Can a person buy a vehicle with just an international license

I am here working under a civilian contractor job. I am looking to get a drivers license but have been told that i can also use an international drivers license. Can a person buy a vehicle here with just an international license.

No.  You need an Iqama and a Saudi driving license.   As per law, if you have an Iqama, you cannot drive a car here on your home country license or IDP.

what is in iqama.

never mind i found it.  My employer will not work on getting us a residental id card.  There to cheap and we have a high turnover rate. 

Well you can rent a car and drive it on your IDP.  You just cannot buy one.