Shown recently at the 2012 NY/Metro Abilities Expo, the GMC Sierra pickup truck in the above pic has been converted by Gosichi. Founded in 1999 after the owner was frustrated with the lack of vehicle choices (and the fact that he was not particularly fond of minivans), he and his team have created a conversion for a pickup truck that can accommodate many powerchair users as either a driver or front passenger. The end result of his work is nothing short of incredible. More info and a video after the jump.
Based on the information that was given, they are currently converting only GM extended-cab and crew-cab full-size pickup trucks. GM full-size SUVs, which use the same chassis, can possibly be converted and could be done if asked to do so. Hand controls and other assistive systems can be fitted as well. Aside from those limitations, you can option out the truck any way you wish. Check out their site for more information. Enjoy the video below.