Keke Rosberg stayed involved in racing after his retirement from Formula One in 1986. He competed with Peugeot's World Sports Car Championship operation in the early 1990s. He entered Germany's top-level touring car championship – the DTM – in 1992, driving first for Mercedes-AMG, and then for Opel Team Joest.
In 1994, Keke Rosberg decided to begin the transition into team ownership, and the newly formed Team Rosberg became part of Opel's DTM program in 1995. In this first year, Keke Rosberg continued driving alongside reigning champion Klaus Ludwig in a pair of Calibra V6 coupes. Team Rosberg was ranked in 6th place in the teams' standings. In 1996, Rosberg retired from driving to concentrate on team management. As the DTM evolved into the short-lived International Touring car Championship, Ludwig moved to another Opel squad Zakspeed. JJ Lehto, managed by Rosberg at the time, joined the team along with Hans-Joachim Stuck. Stuck won in Helsinki and finished in 6th place in the standings.
After the collapse of the ITC, Team Rosberg transferred to the Super Tourenwagen Cup, Germany's Supertouring series. Rosberg managed Nissan's factory program in 1997 and 1998, with a pair of Nissan Primeras for Roland Asch and Sascha Maassen. Asch was the highest ranked Nissan driver, finishing eighth in the 1997 championship. When Nissan's factory participation in the STC came to an end, Rosberg took a sabbatical from touring cars in 1999 and became involved in formula racing for the first time.
Team Rosberg promptly took the opportunity to participate in the DTM again when it was recreated at the turn of the millennium. It partnered with Mercedes-AMG. It was one of four teams running CLK DTMs, with Darren Turner and Pedro Lamy on driving duty. In 2001, with only the factory AMG team running 2001-spec CLKs, good results were harder to find. The lack of success prompted Lamy to leave the team, with David Saelens taking his place. The next two years saw a continuation of Rosberg's position as a Mercedes team running year-old cars, with two cars for Stefan Mücke and Christijan Albers in 2002, and two cars for Mücke (later replaced by Patrick Huisman) and Gary Paffett in 2003. Albers and Paffett both graduated to the factory AMG line-up in 2003 and 2004 respectively, and Paffett became the DTM champion in 2005.
When the relationship between Rosberg and Mercedes ended after the 2004 season, it spent 2005 away from touring cars. The hiatus was ended with the opportunity to return to the DTM, not as a Mercedes customer, but as an Audi customer in 2006. Rosberg ran a brace of 2005-spec A4 saloons for Frank Stippler and Timo Scheider. In 2007, Team Rosberg ran Mike Rockenfeller and Lucas Luhr. Team Rosberg has continued to race Audi cars in DTM, with 2019 as its most successful recent season. René Rast won 7 races throughout the nine race weekends, Jamie Green won 1 race, helping the team to first in that year's championship.
When Team Rosberg left the Super Tourenwagen Cup, it made the jump to formula racing. In 1999, it began a dual program at national level in Germany, with entry into Formula Three and the first iteration of Formula BMW. In the German F3 Championship, it ran future DTM and prototype driver Pierre Kaffer to 8th place in the standings. During its touring car return in 2000, Rosberg maintained its presence in formula racing. It also ran future Formula One driver Christian Klien. Klien led the FBMW line-up in 2001, and finished 3rd in the championship.
That year also saw the debut in the German F3 Championship of future DTM champion Gary Paffett. He stayed with Rosberg in 2002 and won the drivers' championship. Rosberg also secured the teams' title in what became its most successful season. In Formula BMW ADAC, Nico Rosberg won the championship in his rookie season, driving for his father's team under the banner of VIVA Racing. When Rosberg's Formula 3 team moved to the new Euroseries in its inaugural year, Nico graduated with it, and stayed for two years before moving on to GP2 in 2005.
Team Rosberg took on Austria's A1 Grand Prix franchise in 2005, but Austria ended its involvement after one season, due to a lack of results. Rosberg's entry finished 19th in the standings. At the same time, Rosberg ended its participation in Formula BMW ADAC and the F3 Euroseries at the end of 2005, concentrating instead on its DTM association with Audi.
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