Singer's biggest, most powerful roadster, the SM 4AD, wasn't even sold to its own home market at first — for its first two years, it was export-only.
Lead trim: 4AD SM Roadster 1.5 (1497 cc, 48 hp) · up to 58 hp
Singer Roadster 4AD1951–1955
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Nobody in Burbles has spotted a Singer Roadster 4AD 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.
FactSinger's biggest, most powerful roadster, the SM 4AD, wasn't even sold to its own home market at first — for its first two years, it was export-only.
The final version of the Roadster, the 4AD, was officially known as the Singer SM Roadster (Singer SM 1500C in the USA; 3,440 made, 1951–1955). First seen at the October 1951 Paris Motor Show and initially intended for export only, it used the 48 hp, 1497 cc engine from the SM1500 saloon in a virtually unchanged chassis and body, retaining the hydraulic/mechanical hybrid brakes, with a 58 hp twin-carburettor option from 1953; it can be told from the 4AB by its larger, rounder bumpers and bigger taillights on long stalks. From 1953 the 1.5-litre cars became available on the domestic market too. A car tested by The Motor in 1951 had a top speed of 73 mph and reached 0–60 mph in 23.6 seconds (25.8 mpg); no price was quoted as it was for export only. An experimental glass-fibre-bodied SMX Roadster (about ten made) was displayed at Earls Court in October 1953.
Collectors Spotted in the Singer Roadster Lineage
No member has published a public street spot of the Singer Roadster 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 |
|---|---|---|---|---|---|---|---|---|
| 4AD SM Roadster 1.5 (1497 cc, 48 hp) | 1951–1955 | 1.5 L Inline-4 | 48 hp | — | 23.6 s | RWD | — | — |
| 4AD SM Roadster 1.5 twin-carb (1497 cc, 58 hp) | 1953–1955 | 1.5 L Inline-4 | 58 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.
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Same body, same money, other badges — tap any card to flip.
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