Blaze
Try this
At the top of your document
PHP Code:
<?
If(!empty($_GET[section]))
$section = $_GET[section];
?>
Now where you want the cars.php to be displayed put
PHP Code:
<? include($section . ".php"); ?>
Now just make sure your link is
Code:
<a href="main.php?section=car">Your Link Here</a>
Also above is assuming that the page you are using is main.php
if you have any more trouble post your code