We drove to Turkey in our car in the summer — the roads are excellent, but the traffic is completely different from Europe or Russia. Drivers often don't use their indicators, may stop unexpectedly or enter a roundabout without giving way.
Once, someone slightly bumped our bumper in a car park and just drove off. It's a good thing we had compulsory insurance — we filed a report, and the insurance company covered all the costs.
Without a policy, we would have had to pay out of our own pocket, and the amounts are not insignificant. Plus, the police regularly check documents, especially for cars with foreign number plates.
So, my advice to anyone planning to drive in Turkey is to take out insurance in advance. It really saves you a lot of stress and problems.