It's hard to know, always specific to the spoke design. In general the -5mm of offset from stock and 1/2" wider wheel over stock are both going the right direction for more clearance. What you might do is search here or the Googlator see if anyone with the Polestar model has mounted those wheels, probably more luck that way. There is nothing different other than the brakes and the shock under there.

Gonna drop $4k on them brakes huh. I'm totally biased since I developed a front brake upgrade that works better and more economical ;-) It's a lot of dough and not a match to the brake system. They do look nice of course. The caliper is going to be the same as an aftermarket Brembo GT kit, if you had the wheels you could probably adapt an existing template from a Brembo reseller to see if the calipers would fit. It's a gamble if you don't know for sure the calipers will clear.

 

What upgrade did you develop? I'll be looking for larger brakes soon

 

I actually came to this thread looking for information on a BBK and saw your wheel. I love it! Never heard of Variant wheels so I went to the website and I am going to get the Krypton in super black chrome (20x9). Super nice people at Variant and very helpful. Thanks!

 

What upgrade did you develop? I'll be looking for larger brakes soon

Oh hi I make the UPBrakes kits for the Volvo, www.upbrakes.com. That's the SPORT kit on my car, uses the OEM rotor and I have the SPORT19 that uses the larger OEM 366mm rotor from the XC90 T8. It's for a certain type of customer that wants an honest product that is engineered specifically for the car, durable, cheap and easy to service. I love it of course lol.

 

Or you could just go with a BBK 😉