Not a car or bicycle, but a blend - an ELF vehicle
It's an "Organic Transit Vehicle," a car-bicycle blend also known as an ELF bike.
Mark Stewart, a 65-year-old family therapist, is taking it on a 1,200-mile journey along the East Coast Greenway, a bike and pedestrian trail that runs from Florida to Canada.
Stewart began his journey in Durham, North Carolina, on July 15. He estimates the entire trip back to his home in Cambridge, Massachusetts, will take about a month.
He says the first leg, from Durham to Reston, Virginia, took roughly five days, 60 miles at a time.