357 were produced between 1936 and 1938, including one used by Carol II of Romania and another by Alois Eliáš, Prime Minister of the Protectorate of Bohemia and Moravia.

In 1933, Zbrojovka tested a prototype four-cylinder car as a larger and more luxurious follow-on to the Z 4.

[2] Drum brakes were fitted front and rear, and suspension was by lower wishbones and upper transverse leaf springs.

[1] The car was produced in a number of body styles, including a two-door sedan which cost 37,500 Kčs and a two-seat sports car that cost over 50,000 Kčs.

[1] The Z 5 Express could reach a top speed of 120 km/h (75 mph) and had a typical fuel consumption of between 11 and 13 L/100 km (26 and 22 mpg‑imp; 21 and 18 mpg‑US).