Porsche's first purpose-built racer — the 'Giant Killer', and the car James Dean called Little Bastard.
The 550 was Porsche's first purpose-built racing car. Introduced in 1953 and produced in tiny numbers through 1956, it pairs a lightweight aluminium body with a mid-mounted 1.5-litre Type 547 Fuhrmann four-cam air-cooled flat-four, all wrapped around a ladder-frame chassis weighing under 600 kg.
The 550 established Porsche's reputation for outsized performance from small displacement — the 'Giant Killer' nickname is period-accurate. It is also the car in which James Dean was killed in September 1955, chassis 550-0055, giving the model a cultural footprint that extends well beyond motorsport.
The founding Porsche racing car and the first serial expression of the mid-engine, four-cam, aluminium-bodied recipe that would run through the 550A, RSK, RS 60 and beyond. It is a fixed-supply, historically first-tier collector car with permanent cultural weight.
| Variant | Years | Production | Notes |
|---|---|---|---|
| 550 Spyder | 1953–1956 | Not separately recorded | Ladder-frame chassis; mid-mounted Type 547 four-cam 1.5L air-cooled flat-four, ~110 hp; aluminium bodywork by Wendler; approx. 90 built 1953–55 including a small number of prototype/spare chassis. Some sources count ~15 prototypes/spare chassis separately. |
| 550A Spyder (successor) | 1956–1957 | Not separately recorded | Distinct evolution: tubular spaceframe chassis, ~135 hp, approx. 40 built. Not a 550 variant — often folded into 550 family totals, which can bring the wider 550/550A count to ~130 chassis before the 718 RSK. Kept here as a reference point; out of scope as a 550 Spyder buying decision. |
The 550 Spyder is a chassis-by-chassis market. The single most important variable is unbroken, documented ownership from new, ideally verifiable via factory records, period race entries and long-standing marque authorities. Any 550 offered without a continuous, defensible chain of custody must be treated with extreme caution — the model has attracted more sympathetic re-creations, replicas and fabricated identities than almost any other Porsche.
Confirm the chassis number, engine number and body construction against factory records and recognised registrar research (Prescott Kelly, Kevin Jeannette and other 550 authorities have historically been the reference). Original Type 547 engines are the most valuable single component and are frequently replaced in period; matching-numbers cars command a substantial premium. Body originality (early Wendler aluminium versus later restoration panels) materially affects value.
The Type 547 four-cam is a specialist rebuild; only a handful of shops worldwide are competent on it. Inspection should be led by a recognised 550/four-cam specialist rather than a general vintage-Porsche workshop. Expect to review compression and cam-timing figures, magneto and carburetion condition, and a detailed history of any four-cam rebuilds.
Period race provenance — Le Mans, Mille Miglia, Carrera Panamericana, Targa Florio — adds materially to value and to event eligibility (Mille Miglia Storica, Le Mans Classic, Monterey Historics, Goodwood). Buy for the event calendar you actually intend to run, and verify eligibility with the relevant organisers before transacting.
| Date | Auction | Car | Mileage | Result |
|---|---|---|---|---|
| 2024-11-23 | RM Sotheby's Munich | 1955 550 Spyder (Lot 158) | — | €3,464,375 Sold |
| 2024-10-06 | Bonhams The Zoute Sale | 1956 550 RS Spyder (Lot 157) | — | €2,530,000 Sold |
Mix of 550 and 550A road/racing cars; provenance and originality drive a wide spread. Figures are for complete cars, not the frequently seen replicas.
First purpose-built Porsche racing car; fixed low production; permanent cultural and motorsport-historical significance. Downside risk is limited by a small, deeply liquid global market for top-tier historic Porsches and by the impossibility of any future car replicating the specification or the story.
Our view, not advice. This section is Car Collector International's editorial judgement on where this model sits in the collector market, based on the production, specification and market data set out in this guide. It is not a recommendation to buy or sell and it is not investment advice. Values can fall as well as rise.
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The valuation figures in this guide are for research purposes only and do not constitute financial or investment advice. See our full disclaimer.
