Turkish nationals are not allowed to drive MA, MB, ME etc registered vehicles (only on road test from Garage). Only members of family with same surname can drive vehicle if Registration docs are stamped accordingly
(box (7.2) Diger Bilgiler. "araci sahibi ve aile fertlerinden baskasi tarafindan kullanilamazon" must be stamped in docs)
or the persons are named individually on the registration docs if they have different surnames.
Then again, I have a minibus, and anybody can drive it!!!!
Foreign nationals can only drive Turkish plated vehicle if it is a hire car or they hold citizenship/dual citizenship.