CREATE TABLE table_name_92 (winner VARCHAR, city___state VARCHAR, team VARCHAR)

What is Winner, when City / State is 'Mallala , South Australia', and when Team is 'Elfin Sports Cars'?
SELECT winner FROM table_name_92 WHERE city___state = "mallala , south australia" AND team = "elfin sports cars"
SELECT "winner" FROM "table_name_92" WHERE "city___state" = "mallala , south australia" AND "elfin sports cars" = "team"