diff --git a/index.html b/index.html
index be6da78c5e9ec9f23846a724d7820f71b1816897..2a2ff5013191318a67d276d85fb95840f768c1d1 100644
--- a/index.html
+++ b/index.html
@@ -32,16 +32,22 @@
 </div>
 
 <!-- include prototypes here -->
+<script src="js/car.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
-        // Create a new Car instance
+        return new Car(image, make, model, description, price, category, year, mileage, extras);
     }
 
     function showHideExtra(btn,elt,car) {
-
+        if (elt.innerHTML !== "") {
+            elt.innerHTML = "";
+            btn.innerHTML = "+";
+        } else {
+            car.generateExtras(elt);
+            btn.innerHTML = "-";
+        }
     }
 
 
diff --git a/js/car.js b/js/car.js
new file mode 100644
index 0000000000000000000000000000000000000000..6ee8995ad8f684f227a5ed12648e928b2b405e13
--- /dev/null
+++ b/js/car.js
@@ -0,0 +1,29 @@
+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){
+	let 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){
+	let ul = document.createElement('ul');
+	for(let i = 0; i < this.extras.length; i++){
+		let li = document.createElement('li');
+		li.textContent = this.extras[i].name + ' - $' + this.extras[i].price;
+		ul.appendChild(li);
+	}
+	elt.appendChild(ul);
+}
\ No newline at end of file
diff --git a/js/extra.js b/js/extra.js
new file mode 100644
index 0000000000000000000000000000000000000000..0415108d3ea7af4f1977dc03b434de4df5763e46
--- /dev/null
+++ b/js/extra.js
@@ -0,0 +1,4 @@
+function Extra(name, price){
+	this.name = name;
+	this.price = price;
+}
\ No newline at end of file