Motorcycles get some of the most outrageous mods, but there's never been anything quite as wild as Taso Marques' Dumont. A retired F1 and Indycar driver, Marques knows a few things about pushing the envelope and has been designing custom cars and motorcycles since leaving racing. The inspiration for the Dumont was disbelief, and that definitely comes across in the design. With its hubless wheels and 300 horsepower Rolls-Royce Continental aircraft motor, the Dumont is a fully-functional piece of rolling art. The fully-functional bike looks like a work of science fiction, seeming to float on its gleaming chrome 36-inch wheels. Construction took seven months in Marques' shop in Brazil, and the bike is full of unique engineering solutions — making this one of the most impressive custom bikes ever built.