The KZ was the replacement of the Type GS and IG Its intention was to be a rival of the Citroen B2 in the class called "populaires" (economic). The car had a 4-cylinder engine of 2120 cc, 33 cm larger than its predecessors.In 1927 three new models arrived, the KZ1, KZ2, KZ3, 21 cm larger.
In 1929 and 1931 the KZ4 and KZ5 were introduced.
The KZ11, was a taxis G7 company, a special series of 2400 vehicles with new adaptations.