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In the early 1960s, Goodyear revealed “one of the most dramatic tire developments in the history of the industry,” according to the company’s newsletter. It was a tire made of Neothane, a synthetic polyurethane rubber

A side benefit of Neothane was that it was translucent. Goodyear took advantage of this feature by adding dye to the rubber, resulting in a range of bright hues, including green, yellow, red, orange, and blue. When the tires were mounted on rims that had 18 tiny lightbulbs inside, they produced a vivid glow at night. In a 1961 press release, the company predicted a new era of fashion-forward automobiles: