I think you need to read a few threads on this board.
Thousands of tourists rent cars every year here.
Very few have any real problems and most coming back will rent again.
It?s a great way to see the country and it?s gives you the freedom to go where you want, when you want.
My advice is to stick with a reputable company, so if you do have any problems like an accident, they will support you as opposed to some of the smaller ones that will walk away.
Many people on this board have rented from National cars and have been very happy with the service, support and general all round professionalism.
So what are the drawbacks?
Driving here is an art, this is not New York or London, more like Bangkok or Manila.
Drinking and driving is not legal, but the police have no real way to enforce it, so yes, many people drink and drive. As you can imagine, this can be no fun holiday time and it helps keep the accident numbers high.
I have not been stopped by a cop in years and my bet is if you rent a car, you will not be stopped either. I drive everyday and all over the country and in recent times never hear or see people getting stopped/shaked down. What you will get stopped for is not wearing a seatbelt and talking on a cell phone whilst driving. You can drink a beer whilst driving, but not talk on a cell phone.
Enjoy!
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