The Polestar Concept BST previews a hotter Polestar 6 The Polestar 6 electric convertible is set to arrive in 2026 Polestar CEO Thomas Ingenlath has confirmed more BST editions The Polestar 6 is still two years away from production and the start-up automaker’s already showing variants in concept form. On Thursday, the Polestar Concept BST debuted…