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1963 Porsche 356 SC Cabriolet Unique Early Production Prototype

Completed on August 6th 1963 and possibly shown by Porsche at the September 12th 1963 Frankfurt Auto Show, this 356SC cabriolet is a unique early production prototype incorporating several evolutionary design changes planned for 1964 production. In addition to its special order Silver Metallic paint and Bright Red leather interior, the car is configured with almost every factory option planned for 1964 as well as a number of features that were considered but never used in regular production models.
An extremely detailed and correct nut-and-bolt restoration intended for Concours-level competition, the car features the 1964-specification 1,600cc flat four SC engine and four wheel disc brakes, and retains all five original dated chrome wheels, chrome luggage rack, fog lamps, fresh air blower, balance spring, radio, speakers and antenna, all authenticated by the accompanying Porsche Certificate of Authenticity.
For 1963 C models Porsche offered two different engine designs with new designated crankcase numbers. This car’s code 616/16 crankcase connotes its SC designation. The engine has been completely rebuilt with proper SC parts and correctly finished to a high level of detail. The unique fan shroud is a factory experimental unit that routes ignition and electrical wiring through conduits in the sheet metal rather than the external routing eventually retained for production, and an auxiliary power supply receptacle provides power for an optional metal flexible service lamp. This car also features the first of the louvered deck lids designed to increase ventilation.
Four-wheel disc brakes were another new feature for 1964 models. This car’s 356C calipers were rebuilt and plated gold, and the rotors were left primed, just as they were delivered new to prevent rust. The backing plates and axle shafts were detailed and powder coated with a 70% vintage lacquered appearance finish, all new Koni shocks were installed, king pins and steering link were rebuilt and the front steering dampener replaced. All five correctly-dated steel wheels were split in two, individually chromed and welded together again to precision factory quality, and feature new-for-1964 flat hubcaps devoid of the factory insignia.
The accident-free body was stripped to bare metal and refinished in the correct special-order Silver Metallic, its relatively flat finish replicating that applied by the factory, with superb fit and finish to match. A washable spray undercoating also replicates the factory finish, and all correct sound deadener materials were used in conjunction with the original fasteners.
Many interior design changes were considered for 1964. The redesigned dash incorporates new switches, new glove box location and an interim waterfall design with new radio and ashtray location, all fixed rather than removable as in previous designs. The interior is also a case study in excellence and attention to detail, featuring all new materials including leather upholstery, leather-bound carpets and restored and rechromed hardware throughout. Beneath the new convertible top, the frame was restored with NOS wood bows repainted the proper Beige and installed with correct bolts, latches and brackets. All glass is factory correct as well, with the original Sigla windshield and Durvit door and vent windows. Expert chroming has rendered manufacturer markings, numbers and insignias as legible as new.
The completed car boasts matching numbers throughout, the hood, doors, deck lid, jamb plates, instruments, seats, wheels, fuel sending unit, soft top, motor and transmission all either matching the chassis number or factory date coded correct. The overall quality of the restoration is magnified in the smallest details: all correct materials, fasteners, finishes, labels and markings, even the original dated owner’s manual with Red vinyl cover and pristine tool kit.
HIGHLIGHTS

- Porsche Certificate of Authenticity
- Extremely detailed correct nut and bolt proper restoration intended for concours Porsche competition
- Possibly first shown by Porsche for the September 12th 1963 Frankfurt Auto
- Manufactured with unique experimental design changes
- Special order Silver Metallic paint and Bright Red leather interior
- Equipped with most all of the factory options slated for the 1964 model year
- Original 5 dated chrome wheels, luggage rack, fog lamps, fresh air blower, balance spring, radio system
- 616/16 engine case denoting SC designation
- Dash configuration altered by factory
- Possibly the only car with factory interim waterfall design
- All matching numbers: hood, doors, deck lid, jamb plates, instruments, seats, wheels, fuel sending unit, soft top, motor and transmission
- Completely rebuilt suspension, steering and brakes, all new Koni shocks
- Factory-correct washable spray undercoating
- Exceptional fit and alignment throughout
- All instruments restored with new bezels and bulbs for proper operation and as-new cosmetic appearance
- Factory installed disk brakes (new for 1964), flat chrome hub caps with no insignia
- Top frame restored with new old stock wood bows, repainted the proper beige and installed with correct detailed bolts, latches and brackets
- Original factory Sigla windshield and Durvit door and vent windows
- Perfect chrome and brightwork
- Spectacular pristine tool kit

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