diff --git a/src/main/java/org/model/Car.java b/src/main/java/org/model/Car.java
index 74836b5..e61935c 100644
--- a/src/main/java/org/model/Car.java
+++ b/src/main/java/org/model/Car.java
@@ -17,25 +17,31 @@ public abstract class Car extends Vehicle implements Serviceable {
 
     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
+    abstract String getEnergyType();
 
-    // TODO: Override showDetails()
-    // Print brand, model, year, mileage, and number of seats
+    //Override
+    public void showDetails() {
+        System.out.println(getBrand());
+        System.out.println(getModel());
+        System.out.println(getYear());
+        System.out.println(getMileage());
+        System.out.println(seats);
+    }
+    
 
-    /*
-     * Implement Serviceable methods:
-     *
-     * needsService(Vehicle v):
-     * - Check the mileage of the current car
-     * - If mileage > 10000 return true
-     * - Otherwise return false
-     *
-     * performService():
-     * - Print: "General car service completed"
-     */
+    //Implements:
+    public boolean needsService(Vehicle v) {
+        double mileage = getMileage();
+        if (mileage > 10000) {return true;}
+        else {return false;}
+    }
+
+    public void performService() {
+        System.out.println("General car service completed");
+    }
 }