Donnerbüchse All-steel coaches - "Donnerbüchsen" All-steel coaches - "Donnerbüchsen"

| Class_to_1928 | Class_from_1928 | Seats | Quantity | Years_of_Manufacture |
|---|---|---|---|---|
| Di-26 | Cid-26 | 66 | 77 | 1927/28 |
| Di-27 | Cid-27; Ciu-27/28 | 66 | 440 | 1927/28 |
| BCi-28 | BCi-28 | 15/34 | 449 | 1928/29 |
| Ci-28 | Ci-28 | 58 | 1744 | 1928/29 |
| CDi-28 | CCid-28; CCiu-28 | 29/29 | 40 | 1928 |
| Bi-29 | Bi-29 | 38 | 1632 | 1929/30 |
| BCi-29 | BCi-29 | 15/34 | 500 | 1929/30 |
| Ci-29 | Ci-29 | 58 | 450 | 1929/30 |
| Ci-30 | Ci-30 | 58 | 194 | 1929/30 |