Nissan's paint cools the inside of vehicles by reflecting sunlight and creating electromagnetic waves that block the sun's rays.
Nissan showed Tuesday what it called a "cool paint" to keep people inside vehicles cooler, although the coating is six times thicker, making commercialization still a challenge. The company's announcement Tuesday was timely, coming as Japan was enduring record sweltering temperatures. Nissan Motor Co. tested the paint on vehicles scuttling around Tokyo's Haneda airport, where there are plenty of unshaded areas that make it a good place to assess the technology. The vehicles with the special paint looked like ordinary cars, but felt much cooler to the touch. The cool paint lowered…