The McLaren MP4-20 was a car designed by McLaren for the 2005 Formula One season. The car was driven by Kimi Räikkönen and newcomer Juan Pablo Montoya, who joined the team from Williams.
Season[]
The MP4-20 was the most competitive car of 2005, but the Mercedes engine was unreliable throughout the season, which costed Räikkönen a possible chance of a Drivers' Title to Fernando Alonso and the team of a Constructors' Title to Renault.
In the European Grand Prix, with 2 laps to go, Räikkönen suffered a broken suspension due to high tyre degradation. According to the commentator James Allen, if Räikkönen had pitted, he would have got a podium finish. Ultimately, Räikkönen decided not to pit before the final lap, and then his suspension broke coming into Turn 1 of the final lap. He lost the victory to Fernando Alonso.
Räikkönen won seven races, but had a position to win three races in San Marino, Europe and Germany. Montoya won three races, but could have won one more race in Hungary.
McLaren ended up in second in the Constructors' Championship, behind champions Renault.
Team[]
| Position | Name |
| Team Principal | Ron Dennis |
| Chief Executive Officer | Martin Whitmarsh |
| Managing Director | Jonathan Neale |
| Engineering Director | Paddy Lowe |
| Engineering Director | |
| Design and Development Director | Neil Oatley |
| Vice-President of Mercedes-Benz Motorsport | Norbert Haug |
| Director of Operations for Mercedes-Benz Motorsport | Ola Kallenius |
| Director of Engines for Mercedes-Benz Motorsport | Mario Illien |
| Operations Manager | Simon Roberts |
| Team Manager | Dave Ryan |
| Chief Engineer | Tim Goss |
| Chief Engineer | Pat Fry |
| Chief Designer | Mike Coughlan |
| Head of Aerodynamics | Peter Prodromou |
| Head of Vehicle Engineering | Mark Williams |
| Chief Mechanic | Peter Vale |
| Number 2 Mechanic | Marc Priestley |
| Chief Race Engineer | Steve Hallam |
| Spokesperson | Wolfgang Schattling |
| Spokesperson | Ellen Kolby |
| Race Engineer to Kimi Räikkönen | Mark Slade |
| Race Engineer to Juan Pablo Montoya | Phil Prew |
| Driver | Kimi Räikkönen |
| Driver | Juan Pablo Montoya |
| Test Drivers | Pedro de la Rosa |
| Test Drivers | Alexander Wurz |
Race Victories[]
Complete Formula One Results[]
| Complete Formula One Results | |||||||||||||||||||||
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| Year | Driver | Tyre | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 2005 | 
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 Räikkönen
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M | 8th | 9th | 3rd | Ret | 1st | 1st | 11th | 1st | DNS | 2nd | 3rd | Ret | 1st | 1st | 4th | 1st | 2nd | 1st | 2nd | |
 Montoya
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6th | 4th | 7th | 5th | 7th | DSQ | DNS | Ret | 1st | 2nd | Ret | 3rd | 1st | 14th | 1st | Ret | Ret | ||||
 de la Rosa
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TD | TD | 5th | TD | TD | TD | TD | TD | TD | TD | TD | TD | TD | ||||||||
 Wurz
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TD | 3rd | TD | TD | TD | TD | TD | TD | |||||||||||||
