diff --git a/src/main/java/org/model/Car.java b/src/main/java/org/model/Car.java
index 74836b5..0215c91 100644
--- a/src/main/java/org/model/Car.java
+++ b/src/main/java/org/model/Car.java
@@ -15,18 +15,30 @@ public abstract class Car extends Vehicle implements Serviceable {
 
     private int seats;
 
-    public Car(String brand, String model, int year,
-               double mileage, int seats) {
+    public Car(String brand, String model, int year, double mileage, int seats) {
 
         // TODO: Call super constructor
+        super(brand, model, year, mileage);
         this.seats = seats;
     }
 
     // TODO: Override getEnergyType() → return "Unknown"
+    @Override
+    public String getEnergyType() { return "Unknown"; }
 
     // TODO: Override showDetails()
     // Print brand, model, year, mileage, and number of seats
-
+    @Override
+    public void showDetails()
+    {
+        System.out.println("==========================");
+        System.out.println("Brand : " + getBrand());
+        System.out.println("Model : " + getModel());
+        System.out.println("Year : " + getYear());
+        System.out.println("Mileage : " + getMileage());
+        System.out.println("Number of seats : " + seats);
+        System.out.println("==========================");
+    }
     /*
      * Implement Serviceable methods:
      *
@@ -38,4 +50,15 @@ public abstract class Car extends Vehicle implements Serviceable {
      * performService():
      * - Print: "General car service completed"
      */
+    public boolean needService(Vehicle v)
+    {
+        if (getMileage() > 1000 ) return true;
+        return false;
+    }
+
+    @Override
+    public void performService()
+    {
+        System.out.println("Gneral car service completed");
+    }
 }