Polestar is Chinese owned brand(Geely), and their polestar cars are basically the Volvo xc40 ev version. (that's why their sedan is so tall/high ground clearance).
They have yet to build a fully independent ev first platform.
Volvo is owned by Geely so it's kinda all flopped around in the frame of reference. By all intents, the XC40 platform was designed for Polestar and with Polestar because Polestar IS Volvo. It's just more fuzzy. All in, investing in polestar is investing in Volvo one way or annother.