Mercedes-Benz Medium Sedan · Typ 170

W17

Compact Mercedes-Benz of the early 1930s.

Production
1931–1932
Built
12
Body
Sedan
Chassis
W17
Mercedes-Benz Medium Sedan (W17)

The W17 Type 120 was a rear-engined experiment from the early 1930s — a Mercedes-Benz prototype that tested whether the firm's engineering could succeed with the engine behind the cabin, not in front of it.

Developed in 1931 and 1932, the Type 120 placed its powerplant at the rear in a compact package quite unlike the front-engined Mercedes-Benz mainstream of the period. It was an engineering study, not a production program — a response to contemporary European interest in rear-engined layout efficiency.

Only 12 W17 examples were built. The rear-engine approach did not enter series production at Mercedes-Benz, but the W17 documents a moment when Sindelfingen seriously explored an alternative to the orthodox layout that would define the marque.

W17 interior
Cabin details of the W17, as preserved in period photography.

Every model.

1 model designation across 1931–1932 — engines, chassis codes and production figures for the W17.

ModeloAños-modeloChasisMotorTransmisiónTotal
Type 1201931–1932171712

* La cifra de producción publicada cubre todas las series de ese modelo; la fuente no la desglosa más.

W17 side profile
Studio profile of the W17 — the proportions that defined this chassis.
W17 rear three-quarter view
Rear three-quarter view of the W17.