The Coca-Cola 1999 Hot Wheels Mattel Race Team Four Race Cars Set is a collectible toy advertising set that features four race cars themed around Coca-Cola. This original set is designed as a promotional item for the soda brand, making it a sought-after piece for collectors of Coca-Cola memorabilia and enthusiasts of Hot Wheels toys. The set captures the essence of the Coca-Cola theme in a fun and authentic way, making it a valuable addition to any collection.