With the Detroit Auto Show finally winding down, we can turn our attention to the east (or west, depending on your continental perspective) to take in the motoring madness and engineering wizardry coming out of the 2009 Tokyo Auto Salon. Each year, Japan's top tuners descend on the Makuhari Messe to show their wares to the public and press, and with over a year to develop, modify and produce components for the Mitsubishi Evolution X, Subaru Impreza WRX STI and the new darling of the aftermarket scene – the Nissan GT-R – this year's show had the potential to trump anything we've seen out of Tokyo in the last decade.