diff --git a/index.html b/index.html
index be6da78c5e9ec9f23846a724d7820f71b1816897..be8ee78cec1e2c6c723447dde6fc5a4c19d96cc7 100644
--- a/index.html
+++ b/index.html
@@ -32,17 +32,33 @@
 </div>
 
 <!-- include prototypes here -->
+<script src="js/car.js"></script>
+<script src="js/extra.js"></script>
 
 <script>
 
     function generateCar(image, make, model, description, price, category, year, mileage, extras) {
         //Create an array of Extra instances based on Extras names and prices
+        const extrasArray = [];
+        for (let i = 0; i < extras.length; i++) {
+            const extra = new Extra(extras[i].name, extras[i].price);
+            extrasArray.push(extra);
+        }
         // Create a new Car instance
+        const car = new Car(image, make, model, description, price, category, year, mileage, extrasArray);
+        return car;
     }
 
     function showHideExtra(btn,elt,car) {
-
-    }
+        // Show or hide the extra
+        if (btn.innerHTML == "+") {
+            btn.innerHTML = "-";
+            car.generateExtras(elt);
+        } else {
+            btn.innerHTML = "+";
+            elt.innerHTML = " ";
+        }
+    }  
 
 
 </script>
diff --git a/js/car.js b/js/car.js
new file mode 100644
index 0000000000000000000000000000000000000000..a64fdf32589471622bcc51dd73190379770ba9ad
--- /dev/null
+++ b/js/car.js
@@ -0,0 +1,31 @@
+function Car(image,make,model,description,price,category,year,mileage,extras) {
+	this.image = image;
+	this.make = make;
+	this.model = model;
+	this.description = description;
+	this.price = price;
+	this.category = category;
+	this.year = year;
+	this.mileage = mileage;
+	this.extras = extras;
+	
+}
+
+
+Car.prototype.generateImage = function(elt) {
+	var img = document.createElement("img");
+	img.src = this.image;
+	img.alt = this.make + " " + this.model;
+	img.className ="card-img-top"
+	elt.appendChild(img);
+}
+
+Car.prototype.generateExtras = function(elt) {
+	var ul = document.createElement("ul");
+	elt.appendChild(ul);
+	for (var i = 0; i < this.extras.length; i++) {
+		var li = document.createElement("li");
+		li.textContent = this.extras[i];
+		ul.appendChild(li);
+	}
+}
\ No newline at end of file
diff --git a/js/extra.js b/js/extra.js
new file mode 100644
index 0000000000000000000000000000000000000000..4c53e5cb32c2a64860366858cac8747efd039bbe
--- /dev/null
+++ b/js/extra.js
@@ -0,0 +1,6 @@
+function Extra(name, price) {
+    this.name = name;
+    this.price = price;
+    
+}
+
diff --git a/js/index.js b/js/index.js
index 4e1d11911c0a43dddf4d16bc89f1d2d5005e1fb2..6d7f5e76240fb81a5d4770a5d205228999f51047 100644
--- a/js/index.js
+++ b/js/index.js
@@ -1,3 +1,4 @@
+
 const extraList = [
     { name: "Jantes alliage", price: 500 },
     { name: "Toit ouvrant", price: 1000 },