Goodyear’s Nearly Forgotten Glowing Tire Experiment

…In 1961, Goodyear debuted a translucent tire that could be dyed different colors and illuminated from within — think ambient lighting for tires. The main ingredient behind this innovation was neothane, a polyurethane-based material developed by Goodyear chemists William Larson and Anthony Finelli. Unlike conventional black rubber, neothane could be molded into translucent tires. Goodyear then added dyes to create different colors, then fitted wheels with 18 small light bulbs that illuminated the tires from the inside. The result was a set of tires that glowed brightly at night in colors like yellow, red, green, or blue…

Source: Jalopnik