Abstract: A vehicular vision system includes a camera disposed at a vehicle and viewing exterior of the vehicle. The system, responsive to processing by an image processor of image data captured by the camera, determines presence of a leading vehicle ahead of the equipped vehicle and travelling in the same lane as the equipped vehicle. The system, via processing by the image processor of image data captured by the camera, determines an indication at the leading vehicle indicative of a safeness of a passing maneuver by the equipped vehicle. The indication is representative of a determination by the leading vehicle that the safeness of the passing maneuver exceeds a threshold safeness level. The system, based on the determined indication, at least in part controls operation of the equipped vehicle to overtake and pass the determined leading vehicle.