diff --git a/src/main/java/org/model/Car.java b/src/main/java/org/model/Car.java
index 74836b5..bb1d44e 100644
--- a/src/main/java/org/model/Car.java
+++ b/src/main/java/org/model/Car.java
@@ -19,13 +19,23 @@ public abstract class Car extends Vehicle implements Serviceable {
                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.printf("Brand: %s, Model: %s, Year: %s, Mileage: %s\n",
+                getBrand(), getModel(), getYear(), getMileage());
+    }
 
     /*
      * Implement Serviceable methods:
@@ -38,4 +48,17 @@ public abstract class Car extends Vehicle implements Serviceable {
      * performService():
      * - Print: "General car service completed"
      */
+
+    @Override
+    public boolean needsService(Vehicle v) {
+        if(v.getMileage() > 10000){
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public void performService() {
+        System.out.println("General car service completed");
+    }
 }