Hot Wheels id is a unique system of play that blends the exhilaration of Hot Wheels racing with a safe, connected platform of creativity, experimentation and competition. Download the free app to wirelessly measure speed and count laps with two exclusive Hot Wheels id vehicles and the Hot Wheels Race Portal. The supercars are digitally enhanced with an embedded NFC chip that give each one a unique identity. Download the free app, charge the race portal and connect to smart device and launch the app! Colors and decorations may vary.