https://www.youtube.com/watch?v=wjpPJSIcEB8 Whirlwind Wheelchair International's all-terrain wheelchair built in developing countries for use in developing countries. The RoughRider is now available for purchase in the US and Canada.
https://www.youtube.com/watch?v=FvqLfDpIVus This is a Spanish language video made in Columbia, South America, showing the Whirlwind RoughRider, known there as the TOTEM (Todo Tereno Movilidad). The riders in this video are very experienced and have exceptional control of their wheelchairs. Whirlwind does not recommend reckless driving.