Is the tight, twisty and ultra smooth Jebel Hafeet Mountain Road in Abu Dhabi the best in the world? In Series 15, Episode 7, Fifth Gear sent Tiff Needell to the middle east and gave him the keys to a BMW M3 to find out.
You can see the 11km stretch of tarmac on Google Maps, or read more about Jebel Hafeet on Wikipedia.