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McLaren MP4-24 - revised barge boards

In Brazil, McLaren introduced a new small front bargeboard (red arrow, below which you can see the previous version) in front of the sidepod. The upper edge of the previous version was flat for the bulk of its length, only dropping away towards the rear. Now the upper edge is peaked, with a tabletop...

McLaren MP4-24 - experimental front wing endplate

McLaren tried this totally new endplate for the third time in Singapore, without ultimately using it in either qualifying or the race. With its intricate three-part design, it was tried for the first time in Valencia, then at Spa and finally here at the Marina Bay Street Circuit. McLaren also...

McLaren MP4-24 - Monza-spec rear wing

A new rear wing for McLaren at Monza, though not an extreme one like BMW Sauber's, with the Renault-style endplates retaining their integrated three-gill solution. This is paired with a new front wing based on the one used at Spa.

McLaren MP4-24 - shortened wheelbase

As Ferrari did in Silverstone, in Valencia McLaren shortened the wheelbase of the MP4-24, moving the front suspension backwards by 75mm in order to have more weight over the front tyres. Only Lewis Hamilton had the revised car and when he touched the wall on Friday there were no spares for the...

McLaren MP4-24 - B-spec sidepods

In Hungary both McLaren drivers got the B-spec package introduced for Lewis Hamilton only at the last round in Germany. The biggest change is the totally different sidepods (previous design in circle), which are a little bit taller and less curved due to different positioning of the exhausts. And...

McLaren MP4-24 - revised rear diffuser/aero package

McLaren introduced what more or less amounts to a 'B version' of the MP4-24 in Germany, with a new front wing, new side pods, new engine cover, new floor (the V-shaped cut-in in front of the rear tyres has gone) and a new rear diffuser, shown here, with a much wider, asymmetric central channel. The...

McLaren MP4-24 - new rear wing

McLaren have introduced a completely new rear wing for Monaco, with a big slot in the middle of the front of the main plane. The central hole, which is much bigger and more sophisticated in shape compared to the previous solution, is a concept initially introduced by Toyota at Monaco 2005 and used...

McLaren MP4-24 - revised rear diffuser

Like most teams, McLaren have a revised aero package in Spain. However, a new front wing didn't give the expected results on Friday, leaving the team to retain only their updated diffuser on Saturday. It has a twin central section (1), different to the design seen at the start of the season but...

McLaren MP4-24 - revised diffuser design

For Bahrain, McLaren have kept their diffuser from China. An update of the Australia/Malaysia design, it is more than just a double-deck version, with a small additional flap (red arrow) designed to improve the efficiency of the central section. In the heat of Sakhir, the MP4-24 is running with...

McLaren MP4-24 - new front wing

As well as a modified rear diffuser, McLaren introduced this new front wing in China with a double flap on its upper deck and an end plate revised to better direct airflow around the front tyres. The effect is an improvement in the overall aerodynamic balance of the car. (Inset diagram shows...

McLaren MP4-24 - asymmetric sidepods

For Sepang, McLaren have introduced asymmetric sidepods, the left one now housing the electronics box for the car's KERS system. This means that compared to the Melbourne design, the bodywork is more bulbous and wider in section at the rear. Note also the wider exhaust opening to evacuate more hot...

McLaren MP4-24 - cut-out rear floor

McLaren have introduced something completely new for 2009 - a floor with a cut-out section in front of the rear tyres. Its aim appears to be to increase the effectiveness of the rear diffuser by effectively turning the whole rear bodywork area into one large diffuser, with the 'throat' of the...

McLaren MP4-24 - rear diffuser design

McLaren, Ferrari, Renault and BMW Sauber have all made very literal interpretations of the revised 2009 rules regarding the rear diffuser. All of the channels are the same height and length, with no difference in height between the main central section and the side channels. This contrasts with the...

McLaren MP4-24 - front wheel rim fairings

The MP4-24's lower and wider 2009 front wing has modified the airflow around the car. During testing in Portugal the McLaren featured an evolution of the rim fairings tested by the team last year, designed to take best advantage of the change. Whereas before the front wing endplate channelled...

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