Let's take a look at our handicapped population. How many bicycles actually are profitable to help them get more exercise and be healthy? What scooters are there that they could even ride without feeling like they will fall off? Are there any engenius and fun ways to get around for people who have those conditions? If not let's take the time to design a four-wheeled go kart with a roof with a clean and comfortable design a comfortable chair that can swivel to allow ease of access and side panels to allow the person to get into it very easy and feel free and comfortable getting exercise again. Whether they are 170 lb and have cerebral Ataxia or are weighing in at 500 pounds and need help getting places.
A second option to travel. Rentable and roofed, with health boosting potential.
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