I can’t speak for the OP, but a “rotor” can mean the brake rotor on a disc brake, which can warp due to excessive use/heat. They are common on most cars, and usually need to be “turned” (ie. machined to be flat) when they are out of tolerance.

Throwaway economy: I haven't been able to find anyone to turn a rotor in ~10 years, but Amazon will bring me brand new ones tomorrow.

Sure, quality has gone down, but, well, that's why it's not worth turning them anyway.

I've got a 2012 Toyota with regenerative brakes that's had its rotors turned twice (by independent shops) after they've become rusty/noisy around every 5 years or so. But it still has all the original rotors and pads! The mechanics wouldn't replace them since there wasn't enough wear. It's almost bizarre at this point. Maybe in 2027?

I’ve owned some Hondas recently where the rotors noticeably warped after several years (maybe since the cars have such good longevity?).

It probably strongly depends on driving styles. I also trust OEM metallurgy far more than anything you can purchase off Amazon.

The Chinese company Geely bought Volvo and most of the Polestar hardware is actually from Geely. And Geely is not from Norway.

And neither is Volvo, they’re Swedish.

Previously. Now Chinese. Swedish in marketing only, but Chinese ownership.

Previously, they were American (owned by Ford)

Volvo is a publicly-traded Swedish company, in which Geely have a majority stake. Volvo cars are designed and manufactured in Sweden, as well as in China and elsewhere.

Polestar is also a Swedish company, designed in Sweden but mostly manufactured in China. They're expanding production in the USA and Europe (Belgium).

> "Your Polstar is from Norway."

Polestar is a Swedish company owned by Geely, the Chinese auto giant.

Rotor == brake disc

>However, how on earth do you mount a wheel backwards

Put the side of the tire rim that has the car's company logo that normally faces out to the world so that it faces into the wheel well instead, with the tire itself sticking out far more then normal.

Assuming the wheel spokes doesn't grind off part of the brake calipers, it unfortunately can work. It'll drive badly mind you, and does significant cosmetic damage to the rim once you realize the mistake, but it does "drive".

> However, how on earth do you mount a wheel backwards?

Some wheels have a preferred direction and should be used only on left or right side.

The rubber is assymetric in those. But I don't think you would notice is any way if you get like 3% worse grip.