demonstrate to the world they re more than just an oil-based industrial economy and culture. reporter: for these off-roaders, months of careful preparation has finally paid off. i can confirm the total number of cars in the convoy is 153 cars. reporter: a place in the iconic guinness book of world records follows and another good reason omar is based in the middle east. cnn, dubai. i always wanted to break a world record. yeah? yeah. have to figure it out. i ve got to do something. putting up with me. there you go. you re on your way. here s a question for you how happy are you where you live? there is a list now of the happiest countries in the world. we re going to get a chance to tell you which is number one up