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...
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 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 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...
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, 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...









