hope memory helps me, but as far I can remember, 2014 porsche 919 had some kind of FRIC (a system introduced in f1 by mercedes the same year, but later banned). During le mans race, in late hours, rear supensions failed (because of V4 huge vibrations according to some rumors).
2015 919 was basically a whole new car from scratch under the bodywork, and if am I not wrong, FRIC layout was dropped.
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