yes -- that's creating a 2-D array.. When in doubt of what a data structure contains, a easy way to look at it is to just use Data::Dumper like this:

use Data::Dumper;
print Dumper \@list_of_lists;
__END__
OUTPUT:
$VAR1 = [
          [
            'Mustang',
            'Bronco',
            'Ranger'
          ],
          [
            'Cavalier',
            'Suburban',
            'Buick'
          ],
          [
            'Lebaron',
            'Ram'
          ]
        ];
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quick side note -- example of accessing that structure:

print $list_of_lists[1]->[2];   # Buick
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