Polestar, the Swedish electric performance car brand, makes extensive hardware upgrades to its flagship SUV, Polestar 3, for the 2026 model year. Overall performance improves significantly thanks to a new 800 Volt electrical architecture with substantial increase in power, faster charging, and greater core computer processing power. The already amazing Polestar 3 is now better than ever.”New 800 Volt electrical architecture​The 2026 model year marks a major technological leap for Polestar 3 and its SPA2 platform with the introduction of an 800 Volt electrical architecture. Upgraded powertrain with increased performanceAll versions of Polestar 3 now benefit from a new in-house developed permanent magnet synchronous rear motor that delivers higher output. The new rear motor also means the power balance has shifted to a greater rear bias than before.