Our "ACER ducts" were same as what Mclaren exhaust set up is, and few other teams. RBR has got "ducts" but leading underneath abit different to feed the diffuser. They a way to keep the "coke bottle" shape at the rear. Pull rod suspension, no difference really, bit better when wet, Mclaren are apparently going to run that set-up next year (heard that few months ago)
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