For thirty years, the battle between tyre manufacturers gave SUPER GT a second, invisible championship — one fought in the paddock as much as on the circuit. That contest now draws to a close. Beginning in 2027, Bridgestone will supply all GT500 teams exclusively, while Dunlop — in a surprising turn over the dominant Yokohama — claims the GT300 contract, each bound for three seasons. What was once a war of rubber becomes, like so much of modern motorsport, a question of consolidation over competition.