Taken from Motor Sport, March 2020

It was a momentous decision. The Team Sauber Mercedes entries in the 1989 World Sports Car Championship would run as Silver Arrows, just like the W125 grand prix cars before World War II and the W196 Formula 1 racers afterwards. The ‘new’ livery for the Sauber-Mercedes C9 Group C design tipped its hat to the glorious past of a manufacturer returning to motor sport after a long hiatus. And it also paved the way for an equally bright future that comes right up to the present day with the line of championship-winning F1 hybrids.

Yet the call to adopt the famous livery of the marque wasn’t made as the result of intense boardroom debate, extensive market research and never-ending focus groups. Rather it was the personal diktat of one of the highest authorities within Mercedes at the time – unsurprisingly after he’d had a few drinks inside him.

Mercedes had ended its official absence from motor sport in 1988, breaking a sabbatical that dated back to 1955 and the aftermath of the Le Mans 24 Hours disaster. It launched twin programmes: one with Sauber in the WSCC, then known as the World Sports-Prototype Championship, and also with the 190E 2.3-16 in the DTM touring car series in Germany. Only after some early successes – five wins in the WSPC, and six in the DTM – did the marque have the confidence to adopt the iconic racing livery that graced the C9’s famous forebears.

That confidence was buoyed by alcohol at the Mercedes end-of-season motor sport party in 1988. The late Werner Niefer, deputy chairman of the board of parent company Daimler-Benz, was sitting around a table with the Sauber hierarchy when he decreed that the Silver Arrows would make a return after a year of the team’s cars running in the colours of Daimler-Benz subsidiary AEG.

“Niefer banged his huge fist on the table and said we would race silver cars”

Max Welti, Sauber’s long-time team manager, takes up the story: “We were all drunk, pretty drunk actually. Niefer had these big hands and he banged his big fist down on the table and said that we were going to race silver cars! The beer glasses literally sprang up in the air. It was all done by him, Mr Niefer. It was all his decision and his decision alone.”

The backstory to the return of the Silver Arrows had begun much nearer the start of the decade than its end. The Swiss Sauber team had forged a tentative link with Mercedes ahead of the 1982 season when it was developing its first car, the C6, for the new Group C fuel formula. Team boss Peter Sauber had approached the University of Stuttgart about using its wind tunnel. That wasn’t possible courtesy of the institution’s work with Porsche, but he was pointed in the direction of Mercedes by a helpful professor.

Sauber’s team might have been a minnow of the sports car world at that time, but he had a receptive response from Mercedes, where a group of motor sport-minded road car engineers had already taken a close look at the Group C regs. This group, working on an unofficial basis, included Leo Ress. He would go on to design the monocoque of Sauber’s next Group C machine, the C7 of 1983, (while on gardening leave after his recruitment by BMW) and all of its subsequent prototype sports cars (as technical director of the team from 1985).

“We were just a group of dreamers,” says Ress, who also did the calculations for the suspension geometry of the C6 using the manufacturer’s computer power. “We always believed that a low-revving, big-volume turbo engine would be the most fuel-efficient. But it took three years from Peter Sauber’s first contact for Mercedes to be convinced.”

The first Sauber powered by a Mercedes engine, the C8, broke cover in 1985. The turbocharged M117 powerplant had, officially at least, been developed by renowned Swiss tuner Heini Mader. The truth was slightly different, however: the new race engine was designed and built in-house at Mercedes.

Welti describes the Mader story as a “smokescreen” to hide the true origins of the V8s, put about by a manufacturer who still wasn’t officially involved in motor sport. “Maybe Mader built up one or two engines, but no more,” he says. Ress suggests that the original plan was for Mader to undertake the project, but recalls everything being quickly taken in-house because Mercedes wanted to be in control of an engine that bore its badges.

The Mercedes engine wouldn’t make its maiden race start until 1986, however. The C8 non-started on its one appearance of the previous year at Le Mans when John Nielsen, who would win the race with Jaguar in 1990, crashed on the Mulsanne Straight. It didn’t reappear that season.

Sauber undertook a partial world championship season, which included a fortuitous victory in a two-part wet race at the Nürburgring in ’86 with backing from the Yves St Laurent aftershave brand Kouros. A deal that stretched through the 1987 season had been brokered by former BMW Motorsport boss Jochen Neerpasch, then working for Mark McCormack’s IMG management group. The German would be brought in by Mercedes to head up its return to racing, a decision which was taken in early January 1988.

The Swiss operation now became Team Sauber Mercedes, and with the AEG sponsorship undertook a first full-season campaign in the Group C ranks. It did win the WSPC opener at Jerez with a lone C9 shared by Jean-Louis Schlesser, Mauro Baldi and Jochen Mass, but the truth was that the team wasn’t ready to take on reigning champion Jaguar.

“Le Mans in 1988 was a disaster, with a high-speed tyre blowout”

The Mercedes decision to put its full weight behind Sauber hadn’t been taken until January 12, yet the Jerez WSPC opener was on March 6. The programme remained a one-car effort until Silverstone in early May, the final race before Le Mans. The first factory assault by Mercedes at the Circuit de la Sarthe since ’55 turned out to be disaster: Klaus Niedzwiedz suffered a high-speed blowout on the Mulsanne Straight during qualifying; tyre supplier Michelin couldn’t guarantee it wouldn’t happen again, and Mercedes took the inevitable decision to withdraw from the race.

By Le Mans, Sauber had a new engineer running the race operations of the team. Dave Price joined from the Richard Lloyd Racing Porsche squad after being approached by Welti in the pitlane during the Silverstone 1000Km meeting in early May. He recalls arriving at an outfit that had yet to organise itself in a way befitting of a full factory team.

“It was very small when I first went there,” remembers Price. “Leo was doing everything; he was the designer and was engineering both cars. And as we know, designers don’t tend to make very good race engineers! They probably had no more than 12 people in total, including Peter and Max themselves.”

Price helped knock the team into shape, while Ress was freed up to devote more time to car development. After a major suspension test with shocks supplier Bilstein after the Le Mans debacle, Sauber’s season came alive. Team Sauber Mercedes ran a pair of cars in each of the six races post-Le Mans and ended up winning four of them. Schlesser and Baldi took second and third in the points respectively behind Jaguar’s Martin Brundle.

That momentum carried into 1989 with a further upgrade of the C9, which was now powered by a four-valve version of the Mercedes engine known as the M119. Only once would one of the Silver Arrows fail to win over the course of the eight championship rounds in ’89, when hot temperatures at Dijon killed its Michelin tyres and the Joest Porsche team took a surprise victory. Sauber also claimed the big prize at Le Mans, finishing one-two in a race that wasn’t part of the WSPC that season.

The arrival of the new engine was an important factor in the domination of Team Sauber Mercedes, but perhaps not the defining one that some history books relate.

“The engine was definitely more efficient and more power always helps, but at the first test it was actually slower,” explains Ress. “We were a bit surprised and then we saw that we were slower in the corners. That was because the centre of gravity had gone up with the extra weight at the top of the engine. Mercedes undertook a big development programme to come back to the original centre of gravity.”

The reorganisation of the team that took place through ’88 and into ’89 was just as important, he reckons. “Everything was less rushed and we were properly organised,” continues Ress. “We had more time to focus on car development, the aerodynamics and car set-up. In 1988, we had been struggling just to get to the races.”

Price has a similar viewpoint: “I went there at just the right time; you make some small improvements and you’re a f**king hero. It was a piece of cake, really. We used to go to the races expecting to win. It’s great to have that mentality in the team.”

Team Sauber Mercedes ended up taking just about all the silverware in 1989. Schlesser claimed the WSPC title ahead of team-mates Mass and Baldi. Le Mans victory went to Mass, Manuel Reuter and Stanley Dickens in a third C9 entered for the big one in France, with the car shared by Baldi, Kenny Acheson and Gianfranco Brancatelli in second.

It wasn’t the first time that the Silver Arrows had dominated at or near the pinnacle of world motor sport. Nor would it be the last. They would maintain their superiority in 1990 on the arrival of a new Group C car — the Mercedes, not Sauber, C11 — that together with its predecessor won seven of the eight WSPC rounds that year.

Today’s Mercedes F1 team has carried on the run nicely, with six drivers’ and constructors’ doubles since 2014. But it undoubtedly owes something to a drunken conversation more than 30 years ago.

SAUBER-MERCEDES C9

Chassis: aluminium honeycomb
Suspension: Double wishbones all round
Engine: Five-litre Mercedes M119 90-degree V8, twin turbos, four valves per cylinder
Power: 700bhp-plus
Torque: 600ft lb
Gearbox: Five-speed Hewland VGC
Weight: 900kg