The Formula One season approaches its final four races with a three-way battle for the title between McLaren’s Lando Norris and Oscar Piastri, and Red Bull’s Max Verstappen. Earlier, it seemed the championship would be a duel between Norris and Piastri, but recent Red Bull upgrades have complicated the equation. The performance of the upgraded RB21 can now match or surpass McLaren’s, although the margins are slim and it’s uncertain who will have the advantage in upcoming races.