In Australia, if you are in a wheelchair your vehicular mode of choice, I assume, would have to be a car. (well, I can't really say but i am yet to see any other options anyways)
However, in Thailand, they have found a fantastic alternative. Scooters are used by everyone and for just about everything, so it is only fitting that those in a wheel chair get the same opportunity.
Whilst roaming the streets, we stumbled across this contraption for a person to roll their wheelchair up, strap themselves in and ride away.
The handlebars where offset with a couple of bars welded together with some hinges.