554 (1974/01 - 1975/12) 40 kW / 54 Hp

554 A (1974/01 - 1975/12) 40 kW / 54 Hp

644 (1974/01 - 1980/12) 44 kW / 60 Hp

644 A (1974/01 - 1980/12) 44 kW / 60 Hp

744 (1974/01 - 1980/12) 49 kW / 67 Hp

744 A (1974/01 - 1980/12) 49 kW / 67 Hp