Array
(
    [facet] => 1
    [facet.field] => Array
        (
            [0] => sm_facet_make
            [1] => sm_facet_price_info
            [2] => sm_facet_warranty
            [3] => sm_facet_fuel
            [4] => sm_facet_equipment
            [5] => sm_facet_color
            [6] => sm_facet_user
            [7] => sm_facet_town
        )

)