Question: what date was Mallala Motor Sport Park the circuit?
SQL: SELECT "Date" FROM "2-12560674-2" WHERE "Circuit" = 'Mallala Motor Sport Park';

Question: what date did the M3 Motorsport team compete at Winton Motor Raceway?
SQL: SELECT "Date" FROM "2-12560674-2" WHERE "Team" = 'M3 Motorsport' AND "Circuit" = 'Winton Motor Raceway';