diff --git a/1ano/2semestre/poo/src/tp_codecheck/tp03/TrafficLight1.java b/1ano/2semestre/poo/src/tp_codecheck/tp03/part1/TrafficLight1.java
similarity index 97%
rename from 1ano/2semestre/poo/src/tp_codecheck/tp03/TrafficLight1.java
rename to 1ano/2semestre/poo/src/tp_codecheck/tp03/part1/TrafficLight1.java
index 16a2a86..b8c314f 100644
--- a/1ano/2semestre/poo/src/tp_codecheck/tp03/TrafficLight1.java
+++ b/1ano/2semestre/poo/src/tp_codecheck/tp03/part1/TrafficLight1.java
@@ -1,4 +1,4 @@
-package tp_codecheck.tp03;
+package tp_codecheck.tp03.part1;
 
 /**
    A simulated traffic light.
diff --git a/1ano/2semestre/poo/src/tp_codecheck/tp03/TrafficLight2.java b/1ano/2semestre/poo/src/tp_codecheck/tp03/part1/TrafficLight2.java
similarity index 97%
rename from 1ano/2semestre/poo/src/tp_codecheck/tp03/TrafficLight2.java
rename to 1ano/2semestre/poo/src/tp_codecheck/tp03/part1/TrafficLight2.java
index 154113d..a929261 100644
--- a/1ano/2semestre/poo/src/tp_codecheck/tp03/TrafficLight2.java
+++ b/1ano/2semestre/poo/src/tp_codecheck/tp03/part1/TrafficLight2.java
@@ -1,4 +1,4 @@
-package tp_codecheck.tp03;
+package tp_codecheck.tp03.part1;
 
 /**
    A simulated traffic light.
diff --git a/1ano/2semestre/poo/src/tp_codecheck/tp03/part2/RentalCar.java b/1ano/2semestre/poo/src/tp_codecheck/tp03/part2/RentalCar.java
new file mode 100644
index 0000000..f10c708
--- /dev/null
+++ b/1ano/2semestre/poo/src/tp_codecheck/tp03/part2/RentalCar.java
@@ -0,0 +1,72 @@
+package tp_codecheck.tp03.part2;
+
+public class RentalCar {
+    private boolean rented;
+    private static int rentedCount = 0;
+    private static int availableCount = 0;
+
+    /**
+     * Constructs a rental car.
+     */
+    public RentalCar() {
+        // your work here
+        rented = false;
+        RentalCar.availableCount++;
+    }
+
+    /**
+     * Get number of cars available.
+     *
+     * @return count of cars that are available
+     */
+    public static int numAvailable() {
+        // your work here
+        return RentalCar.availableCount;
+    }
+
+    /**
+     * Get number of cars rented.
+     *
+     * @return count of cars that are rented
+     */
+    public static int numRented() {
+        // your work here
+        return RentalCar.rentedCount;
+    }
+
+    /**
+     * Try to rent this car.
+     *
+     * @return true if the car was successfully rented, false if it was already
+     * rented
+     */
+    public boolean rentCar() {
+        // your work here
+        if (this.rented) {
+            return false;
+        } else {
+            this.rented = true;
+            RentalCar.rentedCount++;
+            RentalCar.availableCount--;
+            return true;
+        }
+    }
+
+    /**
+     * Return rented car.
+     *
+     * @return true if the car was previously rented and is now returned,
+     * false if it was not previously rented
+     */
+    public boolean returnCar() {
+        // your work here
+        if (this.rented) {
+            this.rented = false;
+            RentalCar.rentedCount--;
+            RentalCar.availableCount++;
+            return true;
+        } else {
+            return false;
+        }
+    }
+}