Unless it has changed in the last few months its a simple procedure - you and the seller go to a Notary with all your paperwork - residency, tax number & passport and all the car documents, you will need to arrange for a translator.
You and the seller sign the paperwork from the notary after your translator has explained what it says, and thats basically it - notary will send the stuff to Muğla and in about a weeks time the postman will deliver the new registration documents to you.