Basic.. don't upgrade it's not worth it. Fine for a $9 quick stop and wash off I guess but it's only nominally better than a drive-through car wash. Last several visits I paid the upgrade cost for the interior that is double the cost of the basic and both times the inside of my car still looks like garbage! I'm a clean person it's not like they have to clean melted crayons out of the carpet and even still very little effort for twice the cost.