CREATE TABLE table_50778 ("Circuit" TEXT, "Location / State" TEXT, "Date" TEXT, "Winner" TEXT, "Team" TEXT)

Castrol Perkins Motorsport and the winner Russell Ingall was in what location/state?
SELECT "Location / State" FROM table_50778 WHERE "Team" = 'castrol perkins motorsport' AND "Winner" = 'russell ingall'
SELECT "Location / State" FROM "table_50778" WHERE "Team" = 'castrol perkins motorsport' AND "Winner" = 'russell ingall'