What lights should the tractor and the tractor turn on when the car goes out of order and needs traction?
If you are a car accident, then the rescue car is flat car, straight to your car mounted on the flat, what light does not matter. If it's a truck or bus class, there will be a big rescue car with a fixed bracket that will hold the front axle of your car alone. The distance between the two cars is determined by the length of the bracket, which is nothing to do with it.
Emergency lights, 1 to 2 meters there is your brakes and steering system must be normal ~ ~ otherwise, recommended.