CREATE TABLE table_name_51 (stage VARCHAR(255), time__eest_ VARCHAR(255), rally_leader VARCHAR(255), winner VARCHAR(255))
Name the stage for m. grönholm and winner of s.loeb with time of 17:57
    
SQL: SELECT stage FROM table_name_51 WHERE rally_leader = "m. grönholm" AND winner = "s.loeb" AND time__eest_ = "17:57"