CREATE TABLE table_69000 ("Engine code" TEXT, "Displacement" TEXT, "Power ,  Torque@rpm" TEXT, "Redline  ( rpm ) " FLOAT, "Year" FLOAT)

From what year is the engine with engine code M57D30?
SELECT "Year" FROM table_69000 WHERE "Engine code" = 'm57d30'
SELECT "Year" FROM "table_69000" WHERE "Engine code" = 'm57d30'