Zouheir, the distance between Dubai and Abu Dhabi is 130 KMs...this distance is measured in a straight line, now the highway (sheik zayed road) between the two cities isn't a straight line is it? And if you consider the traffic along the way it would take you approximately 2 hours if you strictly follow the "traffic rules".

The link for your reference:
rules.https://maps.google.com/maps?client=safari&oe=UTF-8&ie=UTF-8&gl=&daddr=a...