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Audi Sport Quattro
The Audi Sport Quattro was a Quattro programme car developed for homologation for Group B rallying in 1984, and sold as a production car in limited numbers. It featured an all aluminium alloy 2,133 cc (130.2 cu in) (2.1 L) 20v DOHC engine slightly smaller than that of the Audi Quattro (in order to qualify for the 3-litre engine class after the scale factor applied to turbo engines). In road-going form the engine was capable of producing 225 kW (306 PS/302 bhp), with the competition cars initially producing around 331 kW (450 PS/444 bhp). The vehicle also featured a body shell composed of carbon-kevlar and boasting wider arches, wider wheels (nine inches as compared to the Ur-Quattro's optional eight inch (203 mm) wide wheel rim), the steeper windscreen rake of the Audi 80 (requested by the Audi Sport rally team drivers to reduce internal reflections from the dashboard for improved visibility) and, most noticeably, a 320 mm (12.6 in) shorter wheelbase. This was carried out in order to improve handling potential in the face of newer, smaller competition, such as the Lancia 037 and the Peugeot 205 T16, which had been purpose-built from the start for Group B rules.

A total of 224 cars of this "short version" Sport Quattro were built, and were offered for sale at a heady price of 203,850 German Marks.

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Audi Sport Quattro Wiki
The original Audi Quattro competition car debuted in 1980, first as a development car, and then on a formal basis in the 1980 Janner Rally in Austria. Largely based on the bodyshell of the road-going Quattro models (in contrast to the forthcoming Group B cars), the engine of the original competition version produced approximately 300 bhp (224 kW/304 PS). In 1981, Michèle Mouton became the first female ever to win a world championship rally, piloting an Audi Quattro. Over the next three years, Audi would introduce the A1 and A2 evolutions of the Quattro in response to the new Group B rules, raising power from the turbocharged inline 5-cylinder engine to around 350 bhp (261 kW/355 PS).

Sport Quattro S1

The Audi Sport Quattro S1 was introduced at the end of 1984 as an update to the Audi Sport Quattro. The car featured a inline 5-cylinder engine that displaced 2,110 cc (128.8 cu in) and produced an officialy quoted figure of 350 kW (480 PS/470 bhp). However, the turbocharger utilised a recirculating air system, with the aim of keeping the turbo spinning at high speed, and the actual figure was in excess of 500 bhp (373 kW/507 PS) at 8000 rpm.[1] In addition to the improved power output, an aggressive aerodynamic kit was added that featured very distinctive wings and spoilers to the front and rear of the car to increase downforce. The weight was lightened to just 1,090 kg (2,403 lb), and now accelerate from 0-100 km/h (62 mph) in just 3.1 seconds.

Some of the cars were supplied with a "power-shift gearbox", which is said to be a forerunner of today's Direct-Shift Gearbox (DSG) technology.

The S1 proved to be an immediate success in the rally circuit, helping Walter Röhrl[1] and Christian Geistdörfer win the 1985 San Remo Rally. A modified version of the S1, was also driven by Michèle Mouton. The S1 evolution would become the final Group B car produced by Audi, with the works team withdrawing from the Championship following the 1986 rally in Portugal.

Twenty years after the cancellation of Group B, the Sport Quattro S1 was still widely regarded as the most powerful rally car ever fielded in international competition, with the final factory machines of 1986 rated at an incredible 441 kW (600 PS/591 bhp).

In addition to Group B competition, the S1 won the 1985 Pikes Peak International Hill Climb with Michèle Mouton in the driving seat, setting a world record time in the process. This victory was repeated in 1987, this time at the hands of Walter Röhrl, and again in 1988 (Michèle Mouton) and 1989 (Bobby Unser), completing a hat-trick.

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Audi Sport Quattro driven and owned by John Hanlon at Chatsworth 0888
Manufacturer Audi AG
Parent company Volkswagen Audi Group
Also called S1, S1 Quattro
Production 1985–1986
Assembly Germany
Predecessor Audi Sport Quattro
Class Group B rally car
Body style 2 door Coupé
Layout Front engine,
Quattro permanent
four-wheel drive
Engine 2110 cc I5 turbo
Transmission 6-speed manual
Wheelbase 2,204 mm (86.8 in)
Length 4,240 mm (166.9 in)
Width 1,860 mm (73.2 in)
Height 1,344 mm (52.9 in)
Curb weight 1,200 kg (2,646 lb)

 

 

 

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