Although it looks similar on the surface, the 2026 Polestar 3 is radically different. Key changes include a new 800V architecture instead of 400V (increasing DC charging capability up to 350 kW), a more powerful rear motor on all models, and a new 106kWh battery with improved energy efficiency. Meanwhile, the interior of the Swedish electric SUV receives an upgraded infotainment system that is much faster and more responsive than before.