Polestar 2 single motor long range 2021 July 8, 2019 16 32 64 128 2021 polestar 2 long range single motor review Polestar 2 single motor long range test Polestar 2 0-100 single motor Polestar 2 64kwh single motor standard range Polestar 2 300kw long range dual motor Polestar 2 range