I agree. Most modern ECUs record this sort of data. If the dealer can't point to that evidence, then it's warranty; if there is that evidence, to me it suggests an ECU malfunction, as it should protect the engine from over revving (barring compression lockup due to a poor down change)
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BMW F22 M240i; F48 X1 25i, BMW F20 M135i
Peugeot T9 308 GTi 270
Renaultsport Megane 3 Trophy-R, Renault Clio Sport 182.
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