Eileen Compton is an inventor who doesn't know the meaning of the word "quit." For nearly a decade, she has been designing vehicles for people with mobility challenges. The prolific inventor has come up with 13 car designs and two truck designs. So far, she hasn't sold any ideas to major automobile companies,but,refusing to quit, she keeps pushing ahead. To pay the bills,Mr.Compton works as an engineer on a case by case basis.But vehicle design is her true passion. Her latest idea is to modify an existing four-door sedan so it can be driven without the use of one or both legs. Thai idea,she says,may turn the heards of executives, since it's far cheaper than developing a vehicle from scratch.