VIN: the original Porsche 911 Turbo Prototype chassis 9113300157

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History of chassis 9113300157

Although never actually fitted with a turbocharged engine, chassis 9113300157 was the first ‘911 Turbo’ to appear in public.

It was built under the watchful eye of Chief Engineer, Helmuth Bott, at the firm’s internal design studio, ‘Style Porsche’.

Based on a 1973 model year F-series 2.4 S (complete with sunroof), 0157 previewed a considerable number of forthcoming features to include certain aspects of the new 1974 G-body complete with its provision for impact-absorbing bumpers.

The fibreglass front bumper fitted to 0157 was actually the same type later used by the 1974 model year 3.0 RS and RSR. It housed a large rectangular intake that fed fresh air to a front-mounted oil cooler.

The simplified rear bumper was also fabricated from lightweight GRP and came with a unique bank of vents below the number plate housing.

A Whale Tail spoiler was the result of considerable wind tunnel testing and radically flared fenders were required to cover bigger Fuchs rims. These 15-inch diameter wheels measured 7-inches wide at the front, 8-inches wide at the rear and originally came shod with Dunlop Racing tyres.

The finished car was painted silver. A white ‘Porsche’ script was added to each sill along with a striped ‘Turbo’ graphic down each flank. The Fuchs wheels were given white centres to match.

To contrast the otherwise black interior, green tartan fabric was used for the seat centres and door panels.

Recaro racing seats were fitted along with four-point harnesses.

Unveiled at the Paris Motor Show in October 1973, the prototype was described as housing a 2.7-litre Turbo engine producing 280bhp at 6500rpm. A top speed of 176mph was also quoted.

However, in reality, 0157 was fitted with a mock up engine made of wood.

After creating much interest at Paris, the car did the rounds at several other international motor shows.

An almost production-ready 911 Turbo (the 930) was then unveiled at Frankfurt in September 1974.

The engine-less 0157 sat at the Porsche factory until 1975 when it was purchased by the firm’s importer for Australia and New Zealand, Alan Hamilton.

Hamilton actually wanted a 3.0 RSR, but as production had ended, Porsche converted the old 911 Turbo Prototype to partial RSR specification. 0157 was fitted with a full fat RSR engine and exported to Australia.

Along with his red 934 (chassis 9116700165), Hamilton raced the silver ‘RSR’ on a couple of occasions during 1976 (picking up wins at Oran Park and Hume Weir).

Afterwards, 0157 was converted to right-hand drive by Porsche Cars Australia and sold to Graham Stockley, chairman of the Victorian Porsche Club.

Stockley had the car road registered (on the Victoria plate ‘RSR’) and also used it for a few sprint type events.

Text copyright: Supercar Nostalgia
Photo copyright: Porsche - https://www.porsche.com