The Polestar 3 electric SUV will debut publicly in October, the automaker confirmed Thursday in a press release detailing its first-quarter 2022 sales. Teased in December 2021, the Polestar 3 will likely go on sale in the U.S. as a 2023 model. It will be built at Polestar parent Volvo’s Charleston, South Carolina, factory, as well as at Polestar’s…