Two queries in one WHERE clause??

Hello all,
basically, trying to use URL + explode, to query a table..

Using explode to get "1022" from this url:
domain.com/cars.html/1022/

"1022" is in a field called "line"
my table has three fields:
model/make/line
(1983 525e/BMW/1022)

Using this information, I would like to grab only the "model" fields that match the "make" field, using the defined "line" result from explode function??

list($first) = explode('/', substr($PATH_INFO,1));
$query = "SELECT *
FROM `makes-model`
WHERE `line` LIKE '$first'

ORDER BY RAND() LIMIT 4";

$result = mysql_query($query);
$number = mysql_numrows($result);
{
for ($i=0; $i<$number; $i++) {
$make=mysql_result($result,$i,"make");
$model=mysql_result($result,$i,"model");
$line=mysql_result($result,$i,"line");
echo "$model";
}}

Im sure I have done this before..

FROM `makes-model`
WHERE `line` LIKE '$first'
AND model LIKE 'make'
ORDER BY RAND() LIMIT 4";