Who knows if possible in the US, but an interesting idea for metro areas or suburban areas without adequate public transportation and with stupidly designed sidewalks.
Start here to find article–
Friday, June 16, 2006
Small wheelchair car you drive with a joystick
This Hungarian (concept?) car, the Kenguru, is designed as a stylish small vehicle for wheelchair users. You can wheel your chair right into it and drive it with a joystick.”