why are you using a while loop and a foreach loop?
<?
while ($line = mysql_fetch_array($result)) {
print '<OPTION value=\"".$line['car_id']."\">".$line['car_make']."</OPTION>';
}
?>
second of all, where are you declaring the variable $value (in the below instance)??
print ">$value</OPTION>";
if you use the above code, that should fix your problem, which i'm guessing is that somethings werent displayed.
REMEMBER - tell us what the problem is!
[Edit]Make Sure You Remove The Password And Username From Your Mysql Connection Function When Posting Here (For Security Purposes)[/Edit]