1991 Brun C91 By Ascott Collection

At the beginning of the 90s, after a highly successful period of fine victories with Porsche, the driver and team manager Walter Brun was faced with a dilemma.

The choice was either to resign himself to giving up motor sport because private teams were no longer welcome, or to himself become a constructor of his own cars. Stubborn as he was – he made his fortune in the slot-machine industry – the Swiss decided to embark on the creation of the C91-Judd. At a time when works cars dominated racing, it was a car created by one man’s will, produced in a single copy, with the dream of shaking the domination of the all-powerful Mercedes cars. Ascott Collection is proud to offer this unique car for sale for the first time in 25 years.

1991 marked a period that was full of change in the world of endurance racing, with the planned disappearance of Group C – still tolerated in 1991 – in favour of 3.5-litre-engine cars, as in Formula One. The new regulations banned turbo engines and rotary engines in favour of atmospheric engines with a maximum displacement of 3.5 litres. The number of cylinders was left free. No changes were made to the dimensions of the chassis. On the other hand, the minimum weight was sharply reduced from 900 kg to 750 kg. The use of carbon fibre became standard…

It was in this wind of change that the Brun C91-Judd was unveiled at the 24 Hours of Le Mans 1991: Walter Brun came there to lift the veil on his prototype, directly on the legendary circuit. On the Friday of the great Le Mans week, he presented his own creation … while on the Wednesday he had celebrated the racing debut of the No. 17 Porsche 962C (chassis # 177), the very last of its kind assembled at the Weissach works. After his time as ambassador to the Porsche brand and its faithful representative in the 80s, Brun now turned his back on the German firm to strike out on his own, with his own car.

Walter Brun did not really have a choice, in fact. Since Porsche was only interested in its own Formula One project, it had no wish to develop a 3.5-litre engine for the customer competition. The 962C cars were given a weight penalty in 1991 and were no longer competitive. The man who had considerably modified a number of 962 chassis – even selling some of them to private teams – knew all about the car’s limitations. Starting from a 962 chassis, the weight of 750 kg was impossible to attain… So, the Swiss decided to build his own prototype. It was a boon for him to become an endurance car constructor. He was at the end of three unsuccessful seasons in Formula One (finishing at the end of 1990) and therefore had all the right contacts to find an engine suited to the new FIA regulations.

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Report by ascottcollection.com


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