To continue with the car analogy and to continue your BMW M5 example.
If the oil leak was caused by a defective part from a supplier, can you still blame BMW? If it is a design issue, do you consider it a bug??
WIthout knowing exactly what validation and testing plans a manufacturer uses, without knowing what Quality Assurance measures they take, any reference to "bugs' is pure speculation and letting the manufacturer off the hook.
What of all the non-bug launches of new technology? Or is it only premium brands (you cite BMW, Apple and Panerai) that can get away with what would kill an less regarded brand?