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Porsche has used aluminum knuckles on its cars (911, Boxster, Cayman) for 20+ years. Those are tracked regularly, commonly with only pads and fluids upgrades.
They weigh slightly more, have much more power, and have bigger tires than a BRZ/GR86. Nobody is reporting failed knuckles. It's a non-issue.
*Caliper threads stripping is the common issue on Porsches, people do caliper stud kits to avoid this.
The other European brands also offer vehicles with aluminum knuckles.
Some Lexus and all currently made Teslas use them also, IS-F for example.
Corvettes going back to the 80s have them. This is NOTHING new.
For all the people in the back: There is no reason to start questioning or worrying about something that's been done decades by multiple brands like it's some sketchy new concept.
Concerns about aluminum fatigue or failures should be basically zero unless you're rally racing or something similar...
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2022 BRZ
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