The 2011 FIM Sidecarcross World Championship, the 32nd edition of the competition, started on 3 April and finished after thirteen race weekends on 11 September 2011. The defending champions were eight time winners Daniël Willemsen from the Netherlands and his passenger Gertie Eggink. In 2011, Willemsen raced with 43-year-old Sven Verbrugge as his passenger, after an injury to first-choice passenger Roman Vasyliaka. Willemsen and Verbrugge were a team for a fifth time in the history of the competition, with the combination winning the 2005 and 2006 titles together. Willemsen temporarily switched to Ondrej Cermak as his passenger for the first of two German GP's because of an injury to Verbrugge. Willemsen and his passenger clinched the World Championship at the second-last race of the seaso