Swedish electric performance brand Polestar on Wedesnday provided an early taste of its Polestar 4 due in 2023 with the release of a teaser photo. The Polestar 4 is a coupe-like SUV designed to go up against the electric Porsche Macan, which will also arrive in 2023, and the teaser hints at its general size and shape, as well as its taillight…