CREATE TABLE table_75415 ("Model" TEXT, "Engine" TEXT, "Displacement" TEXT, "Valvetrain" TEXT, "Fuel system" TEXT, "Max. power at rpm" TEXT, "Max. torque at rpm" TEXT)

What is the maximum torque that has 2,445 CC Displacement, and an Iveco 8144.61 engine?
SELECT "Max. torque at rpm" FROM table_75415 WHERE "Displacement" = '2,445 cc' AND "Engine" = 'iveco 8144.61'
SELECT "Max. torque at rpm" FROM "table_75415" WHERE "Displacement" = '2,445 cc' AND "Engine" = 'iveco 8144.61'