Red Bull's Billionaire Maniac

(Corrects paid circulation in fourth paragraph.)

Little known outside of his native Austria, Dietrich Mateschitz is one of the most successful entrepreneurs of our age, a man who single-handedly changed the landscape of the beverage industry by creating not just a new brand but a whole new category: the energy drink. As the visionary who brought the world Red Bull, affectionately known as "speed in a can" or even "liquid cocaine," Mateschitz, 67, has been a patron saint for more than two decades to late-night partiers, exam-week undergrads, long-haul truckers, and, above all, extreme-sports athletes everywhere.