Is the age of the solar-powered car upon us? Hanergy thinks so. The Chinese company just debuted four new vehicles that source all of their energy from the sun. Meanwhile, Clip-Air announced plans to test a crazy modular airplane that carries passengers and cargo in detachable pods. Eleven electric cars set off on a 15,534-mile race across 20 countries and three continents. And cycling infrastructure made huge strides as Paris launched its first bicycle superhighway and the US made progress on a colossal bike path connecting the entire East Coast.