EV maker Polestar to develop own platform, boost number of showrooms EV maker Polestar to develop own platform, boost number of showrooms December 2, 2021 dzadmin Comments 0 Comment In the U.S., Polestar said it would grow from 25 showrooms now to 38 in 2022 and 50 by 2023. It also released a revealing teaser image of its much-anticipated Polestar 3 crossover.