Emergency vehicles (police, fire, ambulance) come with working sirens. You can park a car, turn on the siren, and lead thousands of zombies away from a loot zone.
Build 39, also known as The Vehicles Build , was a major milestone for Project Zomboid , officially released on June 1, 2018 project zomboid build 39 work
The update included better gamepad controls, UI improvements, and new sandbox options. How Vehicles Worked in Build 39 Acquisition & Repairs: Emergency vehicles (police