CREATE TABLE table_77627 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyres" TEXT, "Driver" TEXT, "Rounds" TEXT)

Who is driver of the d6 chassis?
SELECT "Driver" FROM table_77627 WHERE "Chassis" = 'd6'
SELECT "Driver" FROM "table_77627" WHERE "Chassis" = 'd6'