Inside shoulder wearing much faster than rest of tire

Write down what you already tried. A second data point from another 2024 Ford Mustang owner helps more than a generic diagnosis. That's where I'd start. This is from a 2024 Ford Mustang in New Jersey. If they can't show the line item, I assume it's hiding. If this is nothing, great. I want that in data.

Don't overfit one forum story to your car. If it still isn't clear on the 2024 Ford Mustang, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. If they can't show the line item, I assume it's hiding. A day of patience here is cheaper than a wrong part. If the story changes I'll post the new data.