Test

Assets/Standard Assets/Utility/ObjectResetter.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace UnityStandardAssets.Utility
+{
+    public class ObjectResetter : MonoBehaviour
+    {
+        private Vector3 originalPosition;
+        private Quaternion originalRotation;
+        private List<Transform> originalStructure;
+
+        private Rigidbody Rigidbody;
+
+        // Use this for initialization
+        private void Start()
+        {
+            originalStructure = new List<Transform>(GetComponentsInChildren<Transform>());
+            originalPosition = transform.position;
+            originalRotation = transform.rotation;
+
+            Rigidbody = GetComponent<Rigidbody>();
+        }
+
+
+        public void DelayedReset(float delay)
+        {
+            StartCoroutine(ResetCoroutine(delay));
+        }
+
+
+        public IEnumerator ResetCoroutine(float delay)
+        {
+            yield return new WaitForSeconds(delay);
+
+            // remove any gameobjects added (fire, skid trails, etc)
+            foreach (var t in GetComponentsInChildren<Transform>())
+            {
+                if (!originalStructure.Contains(t))
+                {
+                    t.parent = null;
+                }
+            }
+
+            transform.position = originalPosition;
+            transform.rotation = originalRotation;
+            if (Rigidbody)
+            {
+                Rigidbody.velocity = Vector3.zero;
+                Rigidbody.angularVelocity = Vector3.zero;
+            }
+
+            SendMessage("Reset");
+        }
+    }
+}