Most limos already have twwo exit doors and tempered safety glass that will break easily with a break out tool ! The problem will be with the intoxicated passengers opening them up and falling out. Most modern cars lock the doors as soon as the car is in gear, cchild door locks are also a problem! I propose a law to put smoke detectors and glass break out tools in every coMmercial passenger vehicle. Smoke detectors would provide an early warning system and would be inexpensive. Any upstanding operator would already have a fire extinguisher and first aid kit in their vehicles.