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  Audi Sport Quattro S1 'Pikes Peak'      

  Article Image gallery (22) 85ZGA905020 Specifications  
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Country of origin:Germany
Produced from:1986 - 1987
Numbers built:1
Author:Wouter Melissen
Last updated:July 16, 2009
Download: All images
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Click here to download printer friendly versionPriced at a staggering 203,850 German Marks, the 300 bhp homologation special was introduced during 1983. By May 1st of 1984 the required 200 cars were constructed and the Sport Quattro was fully homologated. Audi's new rally weapon was handed to an all-star driver line-up that included Hannu Mikkola, Walter Röhrl, Michele Mouton and Stig Blomqvist. Considering that the previous Quattro had still been good enough to help Mikkola win the 1983 World Rally Championship, expectations for the new Sport Quattro were understandably high.

Blomqvist's spectacular, very sideways driving style suited the Sport Quattro perfectly. By flicking the tail out, the Swede overcame the natural understeer of the nose-heavy Audi. He won five of the twelve rounds and was crowned the 1984 World Champion. Mikkola and Röhrl also won a round, which was enough to clinch the constructor's trophy as well. The writing for the Sport Quattro was on the wall; the mid-engined Peugeot 205 T16 introduced halfway through the season had won three of the last four rallies of the year.

The Group B regulations allowed for an evolution an existing car under the condition that an additional 20 examples were produced. This allowed Audi to create the Sport Quattro S1, which was introduced at the 1000 Lakes rally in August of 1985. Visibly it was quite a dramatic make-over thanks to a massive scoop on the nose and a large rear wing. The awkward weight balance was also addressed by moving the radiators, battery and other auxiliaries to the rear of the car.

Further modifications under the the kevlar body panels concentrated on the drivetrain. The turbocharged 'five' now produced well over 500 bhp, which came at the expense of low-end grunt due to the turbo-lag. To counter that the S1 was fitted with an anti-lag system that fed fuel into the turbo to keep it spinning even when the throttle was closed. The resulting bangs and exhaust-flames were immediate fan favourites. At some rallies, Audi also experimented with a 'PDK' dual clutch automatic gearbox.

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  Article Image gallery (22) 85ZGA905020 Specifications