Would love to see a feature for multi-car navigation sharing. EX: my Boy Scout troop frequently travels some distance for monthly camp outs. To fit everyone, we are often spread across 4-5+ vehicles. It can be difficult to keep track of the other vehicles, especially if some stop or take different routes. It would be nice if each vehicle could join a Waze Group where they would all be given the same route and could see where the others are in relation to them (distance and time wise) A hands free way to communicate between the vehicles would also be a nice bonus.