Motorsport

25 years ago the BMW M3 started its unique series of victories.
In August 1985, a rumour surfaced in motor magazine Auto-Deutschland which emanated from a new sports car. An A Group Car from BMW that was a thoroughbred racing car according to the rules but was also to be produced in a version licensed to drive on open roads for everyday use. Speculation about this dream car that could take to normal roads and was intended for the “Most dynamic among BMW 3 Series drivers" was right on target. But the pundits missed the mark about the motor-sport car by a mile on one prediction: They were convinced that anyone who “wants to be a key player in the A Team needs to be turbocharged under the bonnet”. Not true. The BMW M3 had a naturally aspirated engine. And it became the most successful touring car in the history of BMW.

The M3 project was launched just a few months earlier. Production of the M1 mid-engine sports car had already been discontinued for some time and BMW CEO Eberhard Kuenheim commissioned a design for a successor, almost as an aside, according to legend. After one of his regular visits to Motorsport GmbH in Munich’s Preußenstraße he said, almost as he was leaving: “Mr. Rosche, we need a sporty engine for the 3 Series.” His aspiration was in good hands. Motorsport GmbH with its managing director of technical development Paul Rosche had demonstrated its expertise with the legendary 5 Series saloons driven by M engines as well as developing the Formula 1 turbo engine that powered Brazilian Nelson Piquet to win the World Championship in the Brabham BMW in 1983.

Power source: a four-cylinder engine with 2.3 litres displacement and four-valve engineering.
The new 3 Series engine had something in common with this: the crankcase. It originated from volume production and actually formed the basis for the two-litre engine with four cylinders. Four cylinders meant less weight and high torque, an ideal platform for a sports engine in the projected displacement class. Naturally enough, the series four-cylinder engine was much too tame for a sports engine. A comprehensive power boost was called for in order to turn the plucky daily workhorse into an athletic and sporty power unit. The BMW design engineers increased the displacement to 2.3 litres and applied a formulation that had already achieved significant successes over a period of many years: four-valve engineering. There was also another reason for the decision to opt for a four-cylinder engine and not adopt the six-cylinder engine introduced in the BMW 3 Series. The longer crankshaft in the big engine started to vibrate much earlier than the shorter four-cylinder shaft. The design engineers therefore designed the crankshaft drive of the BMW M3 with sufficient torsional stability to achieve 10,000 revolutions a minute and more. By comparison with the four-cylinder engine installed in the series vehicles, this represented an increase of more than 60 percent.

Paul Rosche recalls: “We started work immediately. One advantage was that the big six-cylinder engine originally had the same cylinder gap as the four-cylinder engine. We therefore cut two combustion chambers off the four-cylinder head of the M88 and bolted a panel over the hole on the rear side." This meant that the new four-cylinder engine had a second forebear. The six-cylinder engine that had initially created a sensation in the M1 and had meanwhile transformed the M635CSi into one of the fastest coupés in the world. Paul Rosche: “Whether you believe it or not – we had created an outstanding four-cylinder engine for the 3 Series within the space of two weeks. Under the development name S14, this engine was to generate headlines in sport and in volume production over the years to come. One Sunday, I drove to von Kuenheim's flat and gave him the car for a test drive. When he came back he said: ‘Good, I like it.’ And that’s how the M3 came into being.”

Contrary to the situation with the mid-engine sports car, the BMW M3 was not going to be crafted by hand in small batches. This car was to be produced as a mass-production automobile on an assembly line. It was destined to compete in near-production touring car motor sport, or more precisely as a Group A racing car, defined as a “production car”, of which at least 5,000 units have to be built within the space of twelve consecutive months in accordance with Annex J of the international automobile sport regulations.
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• Richards debuts Shannons Javelin at Clipsal
• 30-month project to develop new TCM front-runner
• TCM newcomer generates huge interest with enthusiasts

It has taken 30 months to complete, but Jim Richards says the Shannons 1972 AMC Javelin sedan he will debut at Adelaide’s Clipsal 500 opening round of 2012 Touring Car Masters on March 4 is the finest racing car he has even built.


As an ardent admirer of Penske Racing and champion American driver Mark Donohue, who together dominated Trans Am racing with Javelins in the early 1970s, the distinctively styled AMC ‘Pony Car’ was Richards’ first choice as a potential successor to his very successful Shannons Falcon Sprint


“We wanted something different that would interest spectators, but would also be in the Shannons mould,” said Richards. “The Javelin ticked all the boxes.”


As only 178 Javelins were sold in Australia by then-distributors AMI, Richards began his search in mid-2008 by looking at US cars on the Internet.


“However it turned out that the uncle of one of my team members was an enthusiast with four or five of them and I picked this car up almost around the corner in North Melbourne!” he said.”


The exhaustive process of turning the former road car into a TCM front runner began mid-2009 and involved stripping the Javelin of every nut and bolt and then rebuilding it methodically to the TCM regulations, employing proven racecar technology.


Richards said the project had taken him and former Gibson Motorsport Crew Chief Bruce Tyson some time to complete because his small team had been focussed on getting the most out of the Shannons Falcon Sprint, which rewarded them when Richards became the 2010 Touring Car Masters champion.


“We believe it has been worth taking our time,” said Richards after the car’s first shakedown at Melbourne’s Calder Raceway. “The Javelin is a step up from the Falcon in every way and all the lessons we have learned from four decades of racing touring cars have gone into it.”

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• Mercedes-Benz will race the DTM AMG Mercedes C-Coupé based on the new Mercedes-Benz C-Class Coupé in the 2012 DTM season
• New, improved safety concept with state-of-the-art carbon fibre monocoque, a high-strength steel roll cage and six crash structures

Mercedes-Benz chose the IAA International Motor Show in Frankfurt to present the new 2012 DTM AMG Mercedes C-Coupé. The new car is the successor to the AMG Mercedes C-Class, which scored 84 victories in 156 races to become the most successful vehicle in the 27-year history of the DTM. HWA AG began development, design and construction of the DTM AMG Mercedes C-Coupé in June 2010. The first chassis was assembled in June 2011, with the first vehicle completed in August.
The DTM AMG Mercedes C-Coupé was designed to meet the new and improved safety concept for 2012, which includes a state-of-the-art carbon fibre monocoque and a roll cage made of high strength steel. In order to improve driver protection in the event of an accident, all safety-related components such as the fire extinguishing system and fuel tank have been incorporated into the monocoque. Furthermore, each vehicle is equipped with six crash structures to give the driver additional protection to the front, rear and sides. These carbon fibre crash structures are designed to gradually absorb impact energy, so that the driver is not exposed to high deceleration forces.
The new safety concept was developed jointly by rights holder and promoter ITR e.V., the DMSB and the three manufacturers – Audi, BMW and Mercedes-Benz. In order to verify the performance of the DTM safety concept, the DMSB developed a test programme, which was carried out and analyzed by DEKRA, the independent testing organization. All tests were completed without any problems.
The new DTM AMG Mercedes C-Coupé is based on the latest Mercedes-Benz C-Class Coupé, which celebrated its world premiere in summer 2011. The C-Class Coupé rounds off Mercedes-Benz best-selling range and is offered with a choice of five engines – two diesel and three petrol units – developing from 115 kW (156 hp) to 225 kW (306 hp). The C-Class Coupé is manufactured at the Mercedes-Benz plant in Bremen. It’s the fourth model to be built on a single production line alongside the saloon and estate versions, plus GLK – a new production method for Daimler.
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