McLaren MP4-23 - sidepod winglet development 28 September 2008
In Valencia McLaren increased the height of the sidepod winglets. In Singapore they have increased their length, bringing their leading edge forwards by around 12cm (area to right of dotted line). The main effect of this is to increase the efficiency and cooling capabilities of the MP4-23's very small radiator inlets - critical given the high temperatures and humidity here. The horizontal slits have also been elongated to minimise the aero disruption caused by the winglets' increased dimensions. The leading edge of the winglet is now almost completely vertical, increasing the quantity of air diverted towards the rear of the car, and helping to improve the extraction of hot air from the top of the sidepod's small venting gills.