PHP only showing records by id?

I am having trouble with this PHP code and I am not sure how to title it! I have a car showcase and I am wanting the Database to display the cars depending on their ID e.g 1 Ferrari Enzo, 2 Porsche GT3RS. Here is my code:

 <?php
   include_once("php_includes/db_conx.php");
     $sql = "SELECT carid, make, model FROM stock WHERE carid IN(1,2,3)";
    $query = mysqli_query($db_conx, $sql);
    echo mysqli_error($db_conx);
    $stock = mysqli_fetch_assoc($query);
    $stock['carid'];
     $stock['model'];
     $stock['make'];
      ?>

These are the cars.

       <div class="view view-first">
       <img src="http://ift.tt/1MYEcgN" />
   <div class="mask">
 <?php if ($stock["carid"] =='1') {
   echo $stock['make'];
 } else { echo $stock['make'];

} ?>

   </section>
  <section class="right-column">    <div class="view view-first">
 <img src="http://ift.tt/1MYEdBm"               />
 <div class="mask">
  <?php if ($stock["carid"] == '2') {
  echo $stock['make'];
 } else { echo "car does not exist";
  } ?>

 </div>

Sorry if I get this wrong, new here xD