
This 1920s economy car got an unlikely second life as a comic-strip star: a yellow-and-black 509 is the constantly-breaking-down car of Belgian comic character Gaston Lagaffe.
Lead trim: 509 S 1.0 SOHC four (27 PS) · up to 30 hp
Fiat 509 S / SM509-S · 1925–1929
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Nobody in Burbles has spotted a Fiat 509 S / SM yet. See one on the street, point the app at it, and the first card is yours — with your @handle permanently credited on this page.
FactThis 1920s economy car got an unlikely second life as a comic-strip star: a yellow-and-black 509 is the constantly-breaking-down car of Belgian comic character Gaston Lagaffe.
The 509 S and 509 SM sports models (1925–1929) used the same 990 cc SOHC four tuned to 27 PS (509 S) and 30 PS (509 SM) with a single carburetor; wheelbase 255 cm (100.4 in).
Collectors Spotted in the Fiat 509 Lineage
No member has published a public street spot of the Fiat 509 yet — the First · Worldwide stamp is wide open.
Trims & Figures
2 published trims in the catalogue. A blank is a figure not recorded, not zero.
| Trim | Years | Engine | Power | Torque | 0–60 | Drive | Gearbox | MSRP |
|---|---|---|---|---|---|---|---|---|
| 509 S 1.0 SOHC four (27 PS) | 1925–1929 | 1.0 L Inline-4 | 27 hp | — | — | RWD | — | — |
| 509 SM 1.0 SOHC four (30 PS) | 1925–1929 | 1.0 L Inline-4 | 30 hp | — | — | RWD | — | — |
Owning one
We don’t estimate running costs for a car like this. What it costs depends on its condition, its specialist and how it is driven, and an average would mislead.
Owners’ builds
Nobody has claimed one yet.
Photographs

This 1920s economy car got an unlikely second life as a comic-strip star: a yellow-and-black 509 is the constantly-breaking-down car of Belgian comic character Gaston Lagaffe.

A 1920s Fiat 509 became a comic-strip icon decades later — it's the perpetually-breaking-down yellow-and-black car driven by the hapless Belgian character Gaston Lagaffe.
Rivals
Same body, same money, other badges — tap any card to flip.

It briefly served as senior sibling to Marquette, a GM companion brand cancelled after just one year.

Nissan hired former BMW engineers to help develop the 510's suspension, which is why period reviewers frequently compared its handling to the BMW 1600/2002.

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The 600 was a stopgap: the P50's body over the 601's mechanicals, and for a while its estate was built alongside the new 601 saloon.

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This DeVille/Fleetwood was the first production car anywhere to mount its V8 sideways, Cadillac's front-drive gamble on the new C-body.
