PaperMC/paper-server/nms-patches/net/minecraft/world/entity/vehicle/VehicleEntity.patch

--- a/net/minecraft/world/entity/vehicle/VehicleEntity.java
+++ b/net/minecraft/world/entity/vehicle/VehicleEntity.java
@@ -14,6 +14,13 @@
 import net.minecraft.world.level.World;
 import net.minecraft.world.level.gameevent.GameEvent;
 
+// CraftBukkit start
+import org.bukkit.entity.Vehicle;
+import org.bukkit.event.entity.EntityRemoveEvent;
+import org.bukkit.event.vehicle.VehicleDamageEvent;
+import org.bukkit.event.vehicle.VehicleDestroyEvent;
+// CraftBukkit end
+
 public abstract class VehicleEntity extends Entity {
 
     protected static final DataWatcherObject<Integer> DATA_ID_HURT = DataWatcher.defineId(VehicleEntity.class, DataWatcherRegistry.INT);
@@ -30,6 +37,18 @@
             if (this.isInvulnerableTo(damagesource)) {
                 return false;
             } else {
+                // CraftBukkit start
+                Vehicle vehicle = (Vehicle) this.getBukkitEntity();
+                org.bukkit.entity.Entity attacker = (damagesource.getEntity() == null) ? null : damagesource.getEntity().getBukkitEntity();
+
+                VehicleDamageEvent event = new VehicleDamageEvent(vehicle, attacker, (double) f);
+                this.level().getCraftServer().getPluginManager().callEvent(event);
+
+                if (event.isCancelled()) {
+                    return false;
+                }
+                f = (float) event.getDamage();
+                // CraftBukkit end
                 this.setHurtDir(-this.getHurtDir());
                 this.setHurtTime(10);
                 this.markHurt();
@@ -39,9 +58,27 @@
 
                 if ((flag || this.getDamage() <= 40.0F) && !this.shouldSourceDestroy(damagesource)) {
                     if (flag) {
-                        this.discard();
+                        // CraftBukkit start
+                        VehicleDestroyEvent destroyEvent = new VehicleDestroyEvent(vehicle, attacker);
+                        this.level().getCraftServer().getPluginManager().callEvent(destroyEvent);
+
+                        if (destroyEvent.isCancelled()) {
+                            this.setDamage(40.0F); // Maximize damage so this doesn't get triggered again right away
+                            return true;
+                        }
+                        // CraftBukkit end
+                        this.discard(EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
                     }
                 } else {
+                    // CraftBukkit start
+                    VehicleDestroyEvent destroyEvent = new VehicleDestroyEvent(vehicle, attacker);
+                    this.level().getCraftServer().getPluginManager().callEvent(destroyEvent);
+
+                    if (destroyEvent.isCancelled()) {
+                        this.setDamage(40.0F); // Maximize damage so this doesn't get triggered again right away
+                        return true;
+                    }
+                    // CraftBukkit end
                     this.destroy(damagesource);
                 }