Polestar 2 2021 performance July 8, 2019 16 32 64 128 Polestar 2 2021 performance pack Polestar 2 2021 performance upgrade 2021 polestar 2 performance horsepower 2021 polestar 2 launch edition performance package 2021 polestar 2 dual motor performance Polestar 2 performance vs Polestar 2 review 2022 Polestar 2 performance vs standard Polestar 2 suv