1957 Porsche 356 A GS/GT Speedster
- Engine
- Enlarged 1.75L air-cooled flat-four, quad-cam (Type 547/1 Carrera)
- Colour
- Silver Metallic

A 1957 Porsche 356 A GS/GT Speedster fitted with the rare Type 547/1 'Carrera' four-camshaft engine, named in honour of Porsche's class victory at the 1954 Carrera Panamericana. Delivered new in Silver Metallic over Red leather to a dealer in Baden-Baden, chassis 83607 spent several decades in the United States before being acquired by a noted German collection in 1991 and repatriated to Germany, where it underwent comprehensive restoration including installation of a period Carrera engine. The car was subsequently enlarged to 1,750 cc by a respected Porsche specialist.
Ownership
- —Auction saleSold €713,750 (≈ $785K)
- 1957-07-12 →Factory deliveryGerstenmaier, Baden-Baden dealerpartial documentation
Original delivering dealer in Baden-Baden, Germany, as recorded on the factory Kardex sheet.
- 1982 →Champaign, Illinois ownerpartial documentation
Car relocated to Champaign, Illinois beginning in 1982.
- → 1991-06-01Acquisition unknownWestport Motorspartial documentation
St. Louis, Missouri dealership that sold the car to the Aumann Collection in June 1991.
- 1991-06-01 →Private saleAumann Collectionfull documentation
Acquired from Westport Motors and had the car airfreighted back to Germany; commissioned a comprehensive restoration including installation of a Type 547/1 engine, new interior, and wiring. Car was re-registered in September 1994, with further engine and brake work in 2000 and an engine capacity increase in 2013.
- Date unknownMichigan-based ownerpartial documentation
Car spent an unspecified period in Michigan after moving to the United States.
Competition
No competition history extracted from the catalogue.
Maintenance & restoration
- 1994Restoration
Thorough rebuild following the car's return to Germany; included fitting a dismantled Type 547/1 Carrera engine (no. 90067), a complete new interior, and replacement wiring loom. The car was re-registered in September 1994.
The replacement engine was supplied with the car at the time of purchase by the Aumann Collection.
- 2000Engine rebuild
Engine overhaul combined with a full brake system inspection and refurbishment, plus fitting of a new carburettor. Total cost was 17,875 Deutsche Mark.
- 2013Engine rebuildKarl Hloch
The Carrera engine's displacement was increased to 1,750 cc by a noted Porsche specialist, at a cost of €21,952.
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