TLDR: Here's what I know, what do you know that I don't know about the Polestar 2?
I'm not really using the Birkin. I have two parking spots. I have three cars, two of which are mine, are manual, and my wife isn't comfortable with a manual. I'm paying $1k a year to park my daily CR-Z a block from home. I'm thinking about a reshuffle, replacing the Birkin 7 and CR-Z with one vehicle to do everything.
The Polestar 2, in particular, a used Performance Pack dual motor long range, is nearby to the top of my list.
Reviews suggest it's slower in a straight line than a Tesla Model 3 Performance but handles better.
It's classed BS in Solo 2. It's eligible for EVX class too, not that the internet shows much evidence of people running in the class.
It can tow 2000 lbs with an electric folding factory hitch, and there are factory roof cross bars.
The Perfomance pack includes "adjustable Öhlins Dual Flow Valve dampers, high-capacity Brembo brakes, and 20" Forged Alloy Wheels to make the car even more responsive." There's a software upgrade that boosts power on early cars like I'm considering up from 408hp to 476hp and torque from 487 to 502 lb ft to match the tuning of later cars with the same hardware. Polestar also appears to be offering a 20mm factory lowering kit consisting of a set of springs for the Performance Pack suspension.
Two pedals, so my wife will drive it.
Past experience with electric driving says my day-to-day needs could be handled with the existing 110v outlet in my garage, with edge cases handled by the fast charge station three blocks away.
If I do this, it needs to be able to at least good enough to not be an excuse against getting out there for Track Night in America, autocross, rallycross, and ice racing (if the lakes in the middle of Wisconsin ever freeze again).
Known downsides: stupid cup holders, safety systems have strong opinions about performance driving, it's super heavy, peak power falls off at 70% SoC, it has a CCS port which is the dominant standard in the way VHS was in 1997, fast charging is only B-tier, 20" wheels are kinda weird with different sizes front and rear for the same-sized tire which is a concern if I want more than one set.