CREATE TABLE table_50578 ("Team" TEXT, "Make" TEXT, "Drivers" TEXT, "Tyre" TEXT, "Rounds" TEXT)

What is the make of the vehicle for driver Hisashi Wada?
SELECT "Make" FROM table_50578 WHERE "Drivers" = 'hisashi wada'
SELECT "Make" FROM "table_50578" WHERE "Drivers" = 'hisashi wada'