CREATE TABLE table_53385 ("Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT)

What Chassis was driven by Otto Stuppacher?
SELECT "Chassis" FROM table_53385 WHERE "Driver" = 'otto stuppacher'
SELECT "Chassis" FROM "table_53385" WHERE "Driver" = 'otto stuppacher'