McLaren MP4-24

McLaren MP4-24

Category	Formula One
Constructor	McLaren Racing
Designer(s)	Paddy Lowe (Engineering Director) Neil Oatley (Design and Development Director) Pat Fry (Chief Engineer) Doug McKiernan (Chief Aerodynamicist)
Predecessor	McLaren MP4-23
Successor	McLaren MP4-25
Technical specifications
Chassis	Moulded carbon fibre / aluminium honeycomb composite incorporating front and side impact structures and integral safety fuel cell.
Suspension (front)	Inboard torsion bar/damper system operated by pushrod and bell crank with a double wishbone arrangement
Suspension (rear)	As front.
Engine	Mercedes-Benz FO 108W 2.4 L (146 cu in) V8. Naturally aspirated, 18,000 RPM limited, with KERS, mid-mounted.
Transmission	McLaren, 7 forward speeds + 1 reverse semi-automatic.
Fuel	Mobil High Performance Unleaded (5.75% bio fuel) Mobil 1 lubrication.
Tyres	Bridgestone Potenza. Enkei wheels.
Competition history
Notable entrants	Vodafone McLaren Mercedes
Notable drivers	1. Lewis Hamilton 2. Heikki Kovalainen
Debut	2009 Australian Grand Prix
Races Wins Podiums Poles F/Laps 17 2 5 4 0

The McLaren MP4-24 was McLaren-Mercedes' Formula One car for the 2009 Formula One season. It was revealed at McLaren's headquarters in Woking, United Kingdom on 16 January 2009.

The following day, team test driver Pedro de la Rosa gave the MP4-24 its first test run at the Autódromo Internacional do Algarve.

In testing, the MP4-24 was proven slower than its rivals due to aerodynamic problems, with Lewis Hamilton and Heikki Kovalainen repeatedly at the bottom of the timesheets. The car came under much scrutiny from team members and other critics alike. Martin Whitmarsh, McLaren team principal, said the team "had not done a good enough job". He also went on to say "We have an underdeveloped car, we do not have sufficient aerodynamic downforce and we would like to focus on rectifying that as quickly as we can."

The car was originally designed with a conventional diffuser. The MP4-24 was fitted with a modified diffuser based on similar principles to the double-decker designs at the 2009 Malaysian Grand Prix after the FIA confirmed that such components were legal, after several teams had asked the FIA to clarify the matter.

After the British Grand Prix, the midpoint of the 2009 season, McLaren had scored just 13 Constructor's World Championship points with Hamilton scoring 9 and Kovalainen 4. By the same point in 2008 they had scored 72 points and Hamilton was jointly leading the Driver's World Championship with Felipe Massa on 48 points. Hamilton had made public calls to scrap the car and a former team owner turned commentator Eddie Jordan had proclaimed it as "possibly the worst car McLaren have ever designed".

The impact of upgrades to Hamilton's car for the next race at the Nürburgring for the German Grand Prix were positive and saw him qualify in 5th, with Kovalainen in 6th place. However, a collision with Mark Webber's Red Bull at the first corner punctured a tyre and damaged the undertray of the car which effectively ended any chance of competing for a points scoring position, and Hamilton finished the race in 18th and last place with Kovalainen scraping into the points in 8th.

There was a 3-week break between Germany and the next round at Hungary by which time both cars had been upgraded to the new specification. Again, the weekend started well with both cars showing good pace and Hamilton qualified 4th and Kovalainen 6th. This time Hamilton was able to demonstrate the true effectiveness of the upgraded car by winning the race in convincing style. Acknowledging his previous remarks live on the BBC after the race, Eddie Jordan expressed his amazement at how McLaren had managed to turn the car into a race winner. Despite disappointing results at Spa and Monza, Hamilton claimed his second win of the year under the lights of Singapore's Marina Bay from pole position, and a pair of third places in Suzuka and São Paulo helped McLaren clinch third place in the Constructors championship with 71 points, pipping rivals Ferrari by 1 point.

The MP4-24 was succeeded by the MP4-25.

Lewis Hamilton driving the MP4-24 at the 2009 Malaysian Grand Prix.

Complete Formula One results

(key) (results in bold indicate pole position; results in italics indicate fastest lap)

Year	Entrant	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	Points	WCC
2009	Vodafone McLaren Mercedes	Mercedes FO108W V8	B		AUS	MAL‡	CHN	BHR	ESP	MON	TUR	GBR	GER	HUN	EUR	BEL	ITA	SIN	JPN	BRA	ABU	71	3rd
				Hamilton	DSQ	7	6	4	9	12	13	16	18	1	2	Ret	12†	1	3	3	Ret
				Kovalainen	Ret	Ret	5	12	Ret	Ret	14	Ret	8	5	4	6	6	7	11	12	11

^† Driver failed to finish, but was classified as they had completed >90% of the race distance.
^‡ Half points awarded as less than 75% of race distance completed.

External links

• McLaren MP4/24 aero-mech development in 2009
• Photo Comparison between McLaren MP4/24-MP4/23