McLaren has announced a contract extension for Oscar Piastri that will keep the Australian with the team until at least the end of the 2026 season. Piastri has impressed in his rookie season, scoring 42 points so far including back-to-back top-five finishes at Silverstone and Budapest. That was followed by second place in the sprint at Spa-Francorchamps, as McLaren’s resurgence following mid-season upgrades continued. While Piastri was already on a multi-year contract, this extension ties him in for the next three seasons, with team principal Andrea Stella saying the 22-year-old has shown his worth. “It’s fantastic to confirm that Oscar…