BMW E41/P80 engine[1]
Overview
ManufacturerGermany BMW
DesignerPaul Rosche
Werner Laurenz
Heinz Paschen
Production2000–2009
Layout
Configuration72°-90° V10; 90° V8
Displacement2.4–3.0 L (146.5–183.1 cu in)
Combustion
Fuel systemElectronic fuel injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output760–950 hp (567–708 kW; 771–963 PS)[2]
Torque outputapprox. 220–302 lb⋅ft (298–409 N⋅m)[3]
Dimensions
Dry weight89–130 kg (196.2–286.6 lb)[4]

The BMW E41 and P80 series is a family of naturally-aspirated Formula One racing engines, designed and developed by BMW, and introduced in 2000 in partnership with Williams, and continued through 2006, during their partnership with Sauber.[5]

Overview

E41

BMW E41/4 engine.
BMW E41/4 engine detail.

The BMW E41 was a Formula One V10 engine manufactured by BMW.

BMW was the engine supplier to the Brabham Formula 1 team from 1982 to 1987. The team became world champion in 1983 with the turbocharged in-line four-cylinder BMW M12/13. In addition to Brabham, ATS, Arrows, and Benetton also drove with BMW engines at times. After BMW officially withdrew from Formula 1 in 1988, the engines were used under the name of the US company Megatron until turbo engines were banned in 1989.

However, BMW did not completely abandon the design of Formula 1 engines. Various naturally aspirated 3.5-litre twelve-cylinder engines emerged. A new regulation prescribed ten-cylinder engines with a maximum displacement of 3 liters, which led to the creation of the BMW E41/2. This formed the basis for the BMW E41/4 V10 engine with a cylinder bank angle of 72°.

The BMW E41/4 was first used in the Williams FW22 on BMW's return to Formula One on 12 March 2000 at the Australian Grand Prix in Melbourne. Ralf Schumacher finished third in this race – it was the best F1 entry by an engine manufacturer in over 30 years.

Internally, the engines were given detailed designations: the BMW E41/4 with the number R39-9, for example, underwent nine revisions, with R standing for racing specification. In its last expansion stage, which was used at the end of the 2000 season, the BMW E41/4 produced around 810 hp (596 kW) at 17,500 rpm. In qualifying, the engine reached a maximum speed of 17,800 rpm. In the 2001 Formula 1 season, the engine was replaced by the BMW P80.

Specifications

Designation: E41/4R39-9
Displacement: 3.0 liters (2998 cc)
Bore × Stroke: 94.0mm × 43.2mm
Valves/cyl.: 4
Cylinder spacing: 107mm
Power @ rpm Max.: 596 kW (810 hp) @ 17,500 rpm
Torque: 350 N.m. (258 lb-ft)
Year: 2000

P80 series

The BMW P80 series is a naturally aspirated Formula One V10 engine produced by BMW.

BMW had been the engine supplier to the Williams F1 team since 2000. The BMW E41/4 engine at that time was a V10 engine with a cylinder bank angle of 72°.

The P80 engine developed by BMW for the 2002 Formula 1 season was used in the Williams FW24 Formula 1 racing car and, like its predecessor, the BMW P80, had a cylinder bank angle of 90°. The displacement was identical with 2998 cc.

The conception of the P82 was started by a team of fewer than 20 employees in January/February 2001. At that time the P80 had not even made its racing debut. The design phase followed from March to June 2001, and testing of the components began in August. On September 21, 2001, the engine, which consists of a total of almost 5,000 individual parts, ran on the test bench for the first time, and on October 3 it was tested in driving operation for the first time.

When asked about the performance data, the BMW Motorsport Director at the time, Mario Theissen, replied: "Told values such as 19,000 rpm and 900 hp are pure speculation."

In the 2003 Formula 1 season, the engine was replaced by the P83; followed by the P84, and its evolution, the P84/5, in 2004 and 2005.

Background

Williams (2000–2005)

After a ten-year absence from Formula One, BMW began evaluating a return to the sport in the late 1990s. In 1998, the marque signed a contract to supply the Williams team with engines. Williams had won the 1992, 1993, 1996 and 1997 Drivers' Championships, and the Constructors' Championships in all of these years as well as 1994, in a successful partnership with Renault, but the French company withdrew from the sport at the end of 1997, leaving team owner Frank Williams and Technical Director Patrick Head in need of a new engine partnership to remain competitive. As BMW spent 18 months building and testing a normally aspirated, three-litre V10 engine to comply with technical regulations that had changed significantly since the 1980s, the team used old Renault engines rebadged as first Mecachrome and then Supertec.

BMW's E41 engine was ready to compete in the 2000 season, fitted in the FW22 and driven by Ralf Schumacher and Jenson Button. Schumacher scored a podium finish in the engine's first race, and added two more during the course of the season. A series of consistent points-scoring finishes meant that Williams finished a competitive third in the Constructors' Championship, some distance behind the dominant Ferrari and McLaren teams, but ahead of engine manufacturers with more recent experience.

The most successful year of the BMW-Williams collaboration was 2003, but still resulted in neither championship being won.

After the relatively conservative E41, BMW designed the more aggressive P80 engine for 2001, a basic type number that was maintained for the remainder of the company's involvement in Formula One. The engine immediately proved to have a significant power improvement, and propelled Schumacher and new teammate Juan Pablo Montoya into contention for race victories. In all, the two drivers scored four race wins, but lost other opportunities through unreliability and racing incidents. The FW23 chassis also lacked the ultimate downforce to compete with the Ferrari and McLaren drivers at every circuit, although it was the class of the field at "power circuits" such as Hockenheim and Monza.

For 2002, the reliability and consistency of the FW24 chassis was much improved, but Ferrari made a more significant step forward with its own F2002 chassis and dominated both championships. The team scored twelve more points than in the previous year and beat McLaren to second place in the Constructors' Championship, but only won a single race with Schumacher at the Malaysian Grand Prix. Moreover, Montoya was unable to win a single race, despite taking seven pole positions.

The Williams team was more competitive in 2003, as both drivers won on two occasions and Montoya remained in contention for the Drivers' Championship until the penultimate race of the season. However, he ultimately fell short, as did the team in the Constructors' Championship, as although the FW25 was often the car to beat in the second half of the season, it took too much time to reach this point.

2005 BMW P84/5 3.0 V10 engine.

For 2004, the team produced the FW26 chassis, which featured a radical nose section designed by Antonia Terzi. This design proved ineffective, however, in another year of Ferrari dominance, and Williams slipped to fourth in the Constructors' Championship, with Montoya's victory in the Brazilian Grand Prix its sole win in the 2004 season. Before this result, the team had suffered the embarrassment of a double disqualification from the Canadian Grand Prix due to brake duct irregularities, and then Schumacher sustaining spinal injuries as a result of a high-speed crash at the United States Grand Prix, which caused him to miss six races until he recovered. Both drivers left the team at the end of the season.

The final year of BMW's association with Williams, 2005, saw the team's decline in competitiveness continue, dropping to fifth in the Constructors' Championship. None of the team's three drivers—Mark Webber, Nick Heidfeld and Antônio Pizzonia—were able to win a race; the team's best result was a double podium finish at the Monaco Grand Prix. By this time, the team's relationship with its engine supplier had deteriorated, with BMW believing that its engines were capable of winning championships but were being let down by the Williams chassis they were powering. BMW offered to buy the team outright in the hope of gaining overall control of its Formula One endeavours, but Frank Williams refused; as a result, BMW chose to buy the rival Sauber team instead for 2006, and end its deal with Williams.

BMW Sauber (2006–2009)

BMW Sauber
BMW Sauber F1 Team logo
Full nameBMW Sauber F1 Team
BaseHinwil, Zurich, Switzerland
Noted staffMario Theissen
Peter Sauber
Willy Rampf
Noted driversGermany Nick Heidfeld
Poland Robert Kubica
Germany Sebastian Vettel
Canada Jacques Villeneuve
Formula One World Championship career
First entry2006 Bahrain Grand Prix
Races entered70
Constructors'
Championships		0 (Best finish: 2nd – 2007)
Drivers'
Championships		0 (Best finish: 4th – Robert Kubica, 2008)
Race victories1
Podiums17
Pole positions1
Fastest laps2
Final entry2009 Abu Dhabi Grand Prix

BMW bought Swiss team Sauber in June 2005 to form the BMW Sauber F1 Team. The takeover came after BMW's relationship with Williams had deteriorated in the previous months, the partnership ending at the end of the 2005 season. The team, operated under a German racing licence, was based at Sauber's headquarters in Hinwil, Switzerland and BMW's headquarters in Munich, Germany.

The team scored two podium finishes and came fifth in 2006, its first season in Formula One. This was followed by a second place in 2007 after the McLaren team had been excluded from the championship. Robert Kubica took the team's only Grand Prix victory at the 2008 Canadian Grand Prix. Following a poor 2009 season, BMW withdrew from Formula One and sold the team back to founder Peter Sauber.

2006

For the 2006 season, BMW Sauber signed Nick Heidfeld from Williams to be the lead driver, while 1997 World Champion Jacques Villeneuve had his existing two-year contract with Sauber honoured. Robert Kubica was signed as the team's third driver. The team continued to use Sauber's facilities, mostly for chassis construction and wind tunnel testing, while BMW's headquarters in Munich was responsible for building the new 2.4-litre P86 V8 engine, revised technical regulations forcing a change from the 3-litre V10 formula. This replaced the Petronas-badged Ferrari engines which the team had used since 1997. The Sauber team's existing major sponsors, Petronas and Credit Suisse, renewed their contracts with BMW. The team also announced a technical partnership with technology company Intel.[6] The team's new livery, which was maintained throughout its tenure in Formula One, consisted of the traditional BMW blue and white with a hint of red.

Nick Heidfeld took the team's first podium finish at the 2006 Hungarian Grand Prix.

Villeneuve scored the team's first points with a seventh-place finish at the Malaysian Grand Prix, after Heidfeld retired from fifth with an engine failure late in the race. Over the first two-thirds of the season the drivers picked up points with a succession of seventh and eighth-place finishes, plus a fourth-place finish for Heidfeld at the Australian Grand Prix. The team ran a radical "twin towers" aero enhancement on the front of the car for the French Grand Prix, which was meant to improve the flow of air over the top of the chassis.[7] The parts were promptly banned by the Fédération Internationale de l'Automobile (FIA) as they were adjudged to impede the drivers' vision and thus compromise safety.[8]

Heidfeld scored the team's first podium finish at the Hungarian Grand Prix from tenth on the grid. This race also saw the début of Robert Kubica, who replaced Villeneuve after the latter had crashed heavily at the preceding German Grand Prix. Kubica finished seventh, although he was later disqualified after his car was found to be underweight. The official reason for Villeneuve's absence was that he was recovering from his previous accident, but the team later announced that the driver change was permanent.[9] Kubica scored BMW Sauber's second podium finish of the season at the Italian Grand Prix, after running in third place for most of the race and leading briefly during the first round of pit stops while Heidfeld finished in eighth. The team scored a total of 36 points to finish fifth in the Constructors' Championship, an improvement on Sauber's eighth position with 20 points in 2005.

2007

Heidfeld took BMW Sauber's best result of 2007 with second place at the Canadian Grand Prix.

On 19 October 2006, BMW announced that Robert Kubica would partner Nick Heidfeld for the 2007 Formula One season with Sebastian Vettel taking the test and reserve driver role. Timo Glock was later signed as the team's second test driver.[10] The team launched its 2007 car, the F1.07, on January 16, 2007.[11]

The new car showed promising form throughout winter testing, topping the time sheets on occasions. However, team principal Mario Theissen declared some reliability concerns before the season's opening race in Australia. Kubica retired from fourth place with a gearbox problem, but Heidfeld took over the position and held it to the end of the race. In the early races of the season, Heidfeld and Kubica scored a series of points finishes and established BMW Sauber as the third-fastest team, behind Ferrari and McLaren. Theissen also made the point that the performance gap between BMW Sauber and the two top teams was less than the gap between BMW Sauber and the teams behind it.[12]

The Canadian Grand Prix brought mixed fortunes for the team. While Heidfeld scored BMW Sauber's best result thus far with a second-place finish, Kubica suffered a huge crash that resulted in a long safety car period. The media was initially told Kubica had broken his leg, but it later proved that he had escaped with only a sprained ankle and concussion.[13] Vettel took his place in the United States Grand Prix, finishing in eighth place and therefore becoming the youngest driver to score a Formula One World Championship point. Later in the season, Vettel moved teams to take a race seat at the Toro Rosso team.

Kubica returned to racing action at the French Grand Prix and proved his recovery by finishing in fourth position. Over the remainder of the season, he and Heidfeld continued their form to score a total of 101 points, which secured the team second in the Constructors' Championship after McLaren's disqualification. Heidfeld scored another podium finish at the Hungarian Grand Prix and scored 61 points to Kubica's 39, while Vettel's sole appearance produced an additional point.

2008

The Canadian Grand Prix saw Robert Kubica win his and BMW Sauber's first race.

On August 21, 2007, BMW confirmed its driver line-up of Heidfeld and Kubica for the 2008 season.[14] Their 2008 car, the F1.08 was officially launched in Munich at BMW Welt on January 14, 2008. It made its track debut at Valencia the next day, with Robert Kubica driving. Team principal Mario Theissen set the target of the team's first win.

BMW Sauber started the season well with Kubica narrowly missing out on pole after a mistake in his main qualifying lap in Melbourne. He later retired after being hit by Kazuki Nakajima but Heidfeld finished second. Kubica took second in Malaysia, with Heidfeld in 6th setting the fastest lap of the race. The team's points total of 11 was their largest score up to that time. In Bahrain, Kubica scored his and the team's first-ever pole position, beating Felipe Massa by just under three-hundredths of a second. The team went on to finish 3rd and 4th in the race, equalling their highest round points total and promoting them to first place in the constructors' championship for the first time.

The team also attained a second-place finish in the Monaco Grand Prix with Robert Kubica, beating both Ferraris and only trailing the McLaren of Lewis Hamilton by three seconds.

BMW Sauber's first race victory came in the 2008 Canadian Grand Prix, the team achieving a one-two finish with Robert Kubica's first race win and Nick Heidfeld taking second place. The victory came after Lewis Hamilton collided with Kimi Räikkönen in the pitlane, ending the race for both drivers. Kubica was on a different refueling strategy from Heidfeld, who also briefly led the race before securing the one-two finish for BMW Sauber in a comfortable fashion.

After the team's breakthrough win, development was switched to the 2009 season where new regulations come into play. This greatly annoyed Kubica, (who was leading the championship after the Canadian Grand Prix), as he felt they could have had a realistic chance of taking at least one title. The lack of development was reflected with a drop of form throughout the second half of the season, causing BMW to be outpaced by Renault, Toyota, and even Toro Rosso (who started the season as one of the slowest teams) by the end of the season. Despite this, Kubica remained with an outside chance of taking the drivers championship until the Chinese Grand Prix, the 17th round out of 18.

In October the team confirmed that they would stick with Robert Kubica and Nick Heidfeld as their drivers for the 2009 Season.[15]

2009

The poor performance of the F1.09 chassis contributed to BMW's withdrawal from Formula One at the end of the season.

Although BMW Sauber targeted the 2009 season as the year they would challenge for the title, their start to the season was a disappointment. Kubica was running in 3rd place in the opening round when he collided with Vettel while battling for 2nd place and was forced to retire. Heidfeld then secured the team's first podium of the year in Malaysia, but after 6 races BMW Sauber had collected a mere 6 points, and occupied 8th place in the Constructors' Championship out of 10 teams. A raft of upgrades was set for Turkey, including an improved regenerative braking system (KERS) and a double-deck diffuser. While the new diffuser was implemented, the KERS could not be made to fit the new car and both drivers raced without the device. After the qualifying session for the British Grand Prix Mario Theissen announced that the team had decided to halt further development KERS; of which BMW had been one of the strongest proponents, and focus instead on improving the car's aerodynamics. This left Ferrari and McLaren as the only remaining users of the KERS system. In the European Grand Prix at Valencia Robert Kubica scored the team's first points since the race in Turkey.

Following a meeting of the BMW board on July 28, the company held at press conference the following morning in which it confirmed the team's withdrawal from Formula One at the end of 2009. Chairman Norbert Reithofer described the decision as a strategic one.[16] The Formula One Teams Association released a statement in response pledging its support to help the team remain in F1.[17]

On 15 September 2009, it was announced that BMW Sauber had secured a buyer, Qadbak Investments Limited which said to represent European and Middle Eastern interests. However Lotus had been given the 13th and final slot in the 2010 Championship. The team were awarded what was termed a 14th entry, which hinged either on another team dropping out or all the other teams agreeing to allow 28 cars to enter the 2010 Championship.[18][19]

On November 22, Swiss newspaper SonntagsZeitung revealed that Qadbak's attempt to purchase the team had failed as it did not have the necessary funds. Qadbak turned out to be a shell company with no assets and no investors behind it.[20] On November 27, 2009, it was announced that Peter Sauber would repurchase the team conditional upon the team receiving a FIA entry for the 2010 season.[21] The FIA subsequently granted Sauber an entry on December 3.[22] The team used Ferrari engines in 2010.[23]

Complete Formula One results

(key)

Year Entrant Chassis Engine Tyres Drivers 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 WCC Points
2000 BMW WilliamsF1 Team Williams FW22 E41 3.0 V10 B AUS BRA SMR GBR ESP EUR MON CAN FRA AUT GER HUN BEL ITA USA JPN MAL 3rd 36
Germany Ralf Schumacher 3 5 Ret 4 4 Ret Ret 14† 5 Ret 7 5 3 3 Ret Ret Ret
United Kingdom Jenson Button Ret 6 Ret 5 17† 10† Ret 11 8 5 4 9 5 Ret Ret 5 Ret
2001 BMW WilliamsF1 Team Williams FW23 P80 3.0 V10 M AUS MAL BRA SMR ESP AUT MON CAN EUR FRA GBR GER HUN BEL ITA USA JPN 3rd 80
Germany Ralf Schumacher Ret 5 RetF 1F Ret Ret Ret 1F 4 2P Ret 1 4 8 3F Ret 6F
Colombia Juan Pablo Montoya Ret Ret Ret Ret 2 Ret Ret Ret 2F Ret 4 RetPF 8 RetP 1P RetF 2
2002 BMW WilliamsF1 Team Williams FW24 P82 3.0 V10 M AUS MAL BRA SMR ESP AUT MON CAN EUR GBR FRA GER HUN BEL ITA USA JPN 2nd 92
Germany Ralf Schumacher Ret 1 2 3 11† 4 3 7 4 8 5 3 3 5 Ret 16 11†
Colombia Juan Pablo Montoya 2 2F 5PF 4 2 3 RetP RetPF RetP 3P 4P 2 11 3 RetP 4 4
2003 BMW WilliamsF1 Team Williams FW25 P83 3.0 V10 M AUS MAL BRA SMR ESP AUT MON CAN EUR FRA GBR GER HUN ITA USA JPN 2nd 144
Colombia Juan Pablo Montoya 2 12 Ret 7 4 Ret 1 3 2 2F 2 1PF 3F 2 6 Ret
Germany Ralf Schumacher 8 4 7 4 5 6 4P 2P 1 1P 9 Ret 4 PO Ret 12F
Spain Marc Gené 5
2004 BMW WilliamsF1 Team Williams FW26 P84 3.0 V10 M AUS MAL BHR SMR ESP MON EUR CAN USA FRA GBR GER HUN BEL ITA CHN JPN BRA 4th 88
Colombia Juan Pablo Montoya 5 2F 13 3 Ret 4 8 DSQ DSQ 8 5 5 4 Ret 5 5 7 1F
Germany Ralf Schumacher 4 Ret 7 7 6 10† Ret DSQP Ret Ret 2 5
Spain Marc Gené 10 12
Brazil Antônio Pizzonia 7 7 Ret 7
2005 BMW WilliamsF1 Team Williams FW27 P84/5 3.0 V10 M AUS MAL BHR SMR ESP MON EUR CAN USA FRA GBR GER HUN TUR ITA BEL BRA JPN CHN 5th 66
Australia Mark Webber 5 Ret 6 7 6 3 Ret 5 DNS 12 11 NC 7 Ret 14 4 NC 4 7
Germany Nick Heidfeld Ret 3 Ret 6 10 2 2P Ret DNS 14 12 11 6 Ret PO
Brazil Antônio Pizzonia 7 15† Ret Ret 13†
2006 BMW Sauber F1 Team BMW Sauber F1.06 P86 2.4 V8 M BHR MAL AUS SMR EUR ESP MON GBR CAN USA FRA GER HUN TUR ITA CHN JPN BRA 5th 36
Germany Nick Heidfeld 12 Ret 4 13 10 8 7 7 7 Ret 8 Ret 3 14 8 7 8 17†
Canada Jacques Villeneuve Ret 7 6 12 8 12 14 8 Ret Ret 11 Ret
Poland Robert Kubica DSQ 12 3 13 9 9
2007 BMW Sauber F1 Team BMW Sauber F1.07 P86/7 2.4 V8 B AUS MAL BHR ESP MON CAN USA FRA GBR EUR HUN TUR ITA BEL JPN CHN BRA 2nd 101
Germany Nick Heidfeld 4 4 4 Ret 6 2 Ret 5 6 6 3 4 4 5 14† 7 6
Poland Robert Kubica Ret 18 6 4 5 Ret 4 4 7 5 8 5 9 7 Ret 5
Germany Sebastian Vettel 8
2008 BMW Sauber F1 Team BMW Sauber F1.08 P86/8 2.4 V8 B AUS MAL BHR ESP TUR MON CAN FRA GBR GER HUN EUR BEL ITA SIN JPN CHN BRA 3rd 135
Germany Nick Heidfeld 2 6F 4 9 5 14 2 13 2 4F 10 9 2 5 6 9 5 10
Poland Robert Kubica Ret 2 3P 4 4 2 1 5 Ret 7 8 3 6 3 11 2 6 11
2009 BMW Sauber F1 Team BMW Sauber F1.09 P86/9 2.4 V8 B AUS MAL CHN BHR ESP MON TUR GBR GER HUN EUR BEL ITA SIN JPN BRA ABU 6th 36
Poland Robert Kubica 14† Ret 13 18 11 Ret 7 13 14 13 8 4 Ret 8 9 2 10
Germany Nick Heidfeld 10 2‡ 12 19 7 11 11 15 10 11 11 5 7 Ret 6 Ret 5

Formula One World Championship results

References

  1. ↑ "10 Years of BMW F1 Engines" (PDF). 8000vueltas.com. Retrieved 10 November 2021.
  2. ↑ "Theissen 10 years of BMW F1 engines" (PDF). 8000 Vueltas. December 2015.
  3. ↑ "Spicer Horsepower and Torque Calculator". spicerparts.com.
  4. ↑ "2004 Williams FW26 BMW Specifications". Ultimatecarpage.com. Retrieved 10 November 2021.
  5. ↑ "Engine BMW". Statsf1.com. Retrieved 10 November 2021.
  6. ↑ "BMW nets Intel sponsorship". news.bbc.co.uk. BBC Sport. 15 December 2005. Retrieved 14 April 2008.
  7. ↑ "Villeneuve sets Magny Cours pace". news.bbc.co.uk. BBC Sport. 15 July 2006. Archived from the original on 11 March 2008. Retrieved 14 April 2008.
  8. ↑ "BMW ordered to remove nose fins". news.bbc.co.uk. BBC Sport. 26 July 2006. Retrieved 15 April 2008.
  9. ↑ Robertson, David (7 August 2006). "It's the end of the road for Villeneuve". timesonline.co.uk. London: The Times. Retrieved 15 April 2008.
  10. ↑ "Glock signed as BMW second driver". Grandprix.com. 21 December 2006. Archived from the original on 3 January 2007. Retrieved 21 December 2006.
  11. ↑ "The new BMW F1.07". Grandprix.com. 16 January 2007. Archived from the original on 20 January 2007. Retrieved 16 January 2007.
  12. ↑ "Latest News". Formula1.com. Archived from the original on 22 April 2007. Retrieved 10 November 2021.
  13. ↑ "Kubica escapes injury after crash". BBC. 10 June 2007. Archived from the original on 18 June 2007. Retrieved 10 June 2007.
  14. ↑ "Heidfeld and Kubica stay at BMW". BBC News. 21 August 2007. Retrieved 21 August 2007.
  15. ↑ Kubica and Heidfeld stay with BMW BBC Sport'.' Retrieved 8 October 2008.
  16. ↑ Noble, Jonathan (29 July 2009). "BMW will quit F1 at the end of 2009". autosport.com. Haymarket. Retrieved 29 July 2009.
  17. ↑ Perillo, Simone (29 July 2009). "Statement by FOTA Secretary General". teamsassociation.org. Formula One Teams Association. Archived from the original on 20 March 2012. Retrieved 29 July 2009.
  18. ↑ "BMW F1 team secures Swiss buyer". BBC News. 15 September 2009. Retrieved 10 August 2011.
  19. ↑ "BMW expects team to race in 2010". Autosport.com. 15 September 2009. Retrieved 10 August 2011.
  20. ↑ SonntagsZeitung, 2009-11-22
  21. ↑ Pablo Elizalde (27 November 2009). "BMW sells F1 team back to Peter Sauber". autosport.com. Haymarket Publications. Archived from the original on 30 November 2009. Retrieved 28 November 2009.
  22. ↑ Noble, Jonathan (3 December 2009). "Sauber secures 2010 Formula 1 slot". autosport.com. Haymarket Publications. Archived from the original on 6 December 2009. Retrieved 3 December 2009.
  23. ↑ Jonathan Noble and Matt Beer (24 September 2009). "Theissen confirms Ferrari engine deal". autosport.com. Haymarket Publications. Retrieved 24 September 2009.
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