SELECT circuit FROM table_name_93 WHERE winning_team = "carlin motorsport" AND winning_driver = "oliver turvey" AND date = "24 march"
Sirkuit mana yang memiliki tim pemenang Carlin Motorsport, dan pendorong pemenang Oliver Turvey, dan tanggal 24 Maret?
CREATE TABLE table_name_93 (circuit VARCHAR, date VARCHAR, winning_team VARCHAR, winning_driver VARCHAR)