Some points from my side Just consider about the other vehicles trying to overtake. For example if all the vehicles from chennai is going in a chain. The speed for the safety reason is limited to a very moderate level. But other highway user's will be maintaining higher speeds and will be overtaking you. But there can be other vehicles blocking in the right lane. So he will try to overtake from wrong side or try to move in to Fiat chain till he get a opportunity to overtake the blocking vehicle. This process can be some times dangerous considering the unusual long array of vehicles. So there should be strict discipline and we should, being taking long portion of road, should always give a gap by slowly reducing the speed to help the life of the overtaking vehicle as easy as possible. Since the highway is enough wide, we will come across the problem rarely, but keep prepared for the worst case. Top priority should be given for other vehicles on the road than maintaining the symmetry of Fiat vehicles. Once each one stick to this general principle lot of unwanted incidents can be avoided. Think of all worst possibilities that can emerge till finish the city limit. A complete preplanned strategy should be drafted and posted. I would recommend to post it in a separate thread so that everybody see it and later can be merged to this thread after the meet. Every one should be extra cautious irrespective of the driving confidence. Best luck.