If you end up driving in Turkey you should know these things.
Many Turks do not notice stop lights and stop signs. Many Turks are a bit lax about or unaware of lane discipline. Turks almost never drive in aggressive or macho styles. Most Turks will surrender the passing lane with grace. When the red light is about to turn green, the orange light comes on with the existing red light just before the green. Many Turks go just before that moment. However, even with that jump they will NEVER out drag you since macho is not part of their driving style, and perhaps the fuel is too expensive to waste with dragging. Most Turks barely speed up to pass, and consequently need very long clear zones to pass. Maximum speed outside of towns in Turkey (except on the rare limited access highways) is 90 KPH (56 MPH), but the Trafik Polis let you do 100 KPH (62 MPH) before pulling you over. Along the coast it is not unusual for them to “speed trap” just within village limits to catch people not slowing down. They extract punishment (the fine) at the roadside. The one limited access highway we were on had a speed limit of 130 KPH (81 MPH). At stoplights Turks invariably get as many cars as possible side by side waiting for the before-the-green.
With your rental car be certain to buy full insurance coverage—in all likelihood your domestic policy does not cover you there. And be sure to visit AAA (bring along two passport photos) to get your International Driving License. If you want automatic or air conditioning in your rental car, be certain to specify that up front. The cars are probably not what you are used to. In deciding on which rental car to get consider the size of the group traveling, whether it has power enough to pass safely, and it's fuel economy.