CREATE TABLE table_52268 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT)

What driver has a 166 c 500 chassis?
SELECT "Driver" FROM table_52268 WHERE "Chassis" = '166 c 500'
SELECT "Driver" FROM "table_52268" WHERE "Chassis" = '166 c 500'