Quote:
Originally Posted by Blighty
According to reports of Toyotas 3 month tuning delay, these knuckles were changed to the old ones at the very last minute.
There is a chance it was done to improve the balance of the car at the limit, Toyota was (again according to reports at the time) really struggling with some of the tuning.
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It's a cheaper part and more durable. Most likely nothing to do with any kind of performance. Aluminum provides better NVH as well as less unsprung weight. But balance and feel? That sounds like a marketing department not an engineer.