Circle-8 races ...
all day every day!
In the last century I designed a velomobile that was pedal powered, with big front wheels (like a wheelchair or Frank Lloyd Wright car) and a variable wheelbase. What I'm seeing here is no opportunity for exercise.
Maybe an autonomous e-bike?
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Pinterest I'll tolerate, although they used to show more than three items. In this case, that did give up this:
http://blog.picodulce.com.ar/wp-cont...del-futuro.jpg
Sort of a New Porsche 64.