CREATE TABLE table_67308 ("Year" FLOAT, "Team" CLOB, "Chassis" CLOB, "Engine" CLOB, "Rank" CLOB, "Points" FLOAT)

Name the chassis of 147 points and engine of ford cosworth dfx
SELECT "Chassis" FROM table_67308 WHERE "Points" = '147' AND "Engine" = 'ford cosworth dfx'
SELECT "Chassis" FROM "table_67308" WHERE "Engine" = 'ford cosworth dfx' AND "Points" = '147'