The U.K. ones have two buttons I believe, but they have intrusion alarm, dipping headlights, medical kit and a safety triangle. They do not trust us with a medical kit in case we play doctor and the person dies. They may have a luminous safety
Vest as well these days. Two triangles may be required now as well. They do not have much trunk space left.
I have the safety kit and triangle. A thirteen year old safety kit may be dangerous than leaving the cuts alone.