Only two rounds into the 2009 FIA Formula One World Championship and the largest number of rule changes in the history of the sport have well and truly reshuffled the deck. We took a close look at the Kinetic Energy Recovery System (KERS) before the opening round got underway in Melbourne, Australia, but it turns out the biggest news in Formula One at the start of the season is the rear diffusers being used by the Brawn, Toyota and Williams teams. The diffusers in question were cleared by the FIA as long ago as January but the matter will again be considered by the FIA's International Court of Appeal on April 14. Paul Evans investigates.
Read the full article: Formula One Double Deck Diffuser explained