Already in 1934, CKD-Praga built the 18-cylinder Isotta Fraschini ASSO 1000 W-engine that gave 1,000 CV of power.

-As "Praga", are known simply the 36 model engines (Praga B), B-2, D, DR, DH, E, ER, and the horizontally-opposed Doris B. (See Praga).

-Ceskomoravska Kolben Danek was founded in 1915 and was named Praga (CKD-Praga) around 1927.

-Kolben-Danek and Breitfeld-Danek (See), have other known models: they were the ES 550 CV and the ESVR 600 CV.