DesignworksUSA, the BMW-owned creative consultancy and the Official Mobility Partner of the United States Olympic Committee, used a 3D scan of US Paralympian Athlete Josh George on his chair and created 3D models, including the athlete in the procedure, that could fine tune the aerodynamics. The new redesign will help the athletes be more comfortable and enhance performance since it is lighter than aluminum and also provides greater torsional rigidity and stiffness.
Source: http://3dprintingindustry.com/news/bmw-powers-us-paralympic-team-91247/