My legal translator made enquiries a few weeks ago about the anomily that you need a residence permit to take your car out of Turkey but not to buy one.
He checked with Istanbul, Ankara and it was confirmed that YES you can buy a car without a residence permit but you cannot remove it from Turkey without a residence permit.
The law was apparantly changed approx 2 years ago for purchases but as per the norm here the the removal one hasn't caught up with this fact.
I also know lots of people that have purchased cars without a permit so I think the fact that we are in the "provinces" has no bearing on the facts.
Fi