M30
Inline-4- 30 1.5 L · 1,498 cc
56 PS
41 kW · 55 hp a 1,600 rpm
Mercedes-Benz Sport Roadster · Typ 150
A tiny sports roadster on the rear-engined platform.

The W30 carried the rear-engine philosophy of the smaller Mercedes line into open two-seater form: a compact 1.5-liter four-cylinder mounted aft of the cockpit, independent suspension, and minimal bodywork aimed at light weight and agile handling rather than touring comfort. It was an experiment in sporting proportion as much as in layout.
All five examples date to 1934 in the surviving ledgers. The W30 was never a production program in any ordinary sense — more a brief, audacious statement that rear-engined Mercedes-Benz could wear sports-car clothes.

1 distinct series across 1934 — each identified by its chassis and engine numbers from period factory data.
| Modelo | Años-modelo | Chasis | Motor | Transmisión | Total |
|---|---|---|---|---|---|
| Type 150 | 1934 | 30 | 30 | 5 |
* La cifra de producción publicada cubre todas las series de ese modelo; la fuente no la desglosa más.


The M30 as fitted to the W30.
56 PS
41 kW · 55 hp a 1,600 rpm