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Attacks on vehicular systems involve very often replacing original system units by fake ones or just manipulating existing units. Cars incorporate many such targeted units ranging from electronic control units (ECU), odometers, maintenance counters and many others. Most attacks are commercially driven and some may have just legal or criminal interests behind them. The majority of such attacked units have a virtual lifetime of at least 15 years as usually assumed for vehicular units. Vehicular environment has its special side conditions and requirements. One essential security requirement for robust unit security is the need for physically unclonable or clone-resisting units. Such units should also be provably identifiable. In this contribution, several special core physical identification technologies suitable for vehicular environment are demonstrated. One proposed strategy is to link the physical unit identity to multiple identification attributes. This includes the unit's operational interaction with its vehicular environment as a living individual profile. The unit's dynamic behavior profiles can serve as practically hard-to-clone additional identity attributes. Another physically cloneresistant architecture is shown to be realizable when deploying modern self configuring VLSI technology. Several implementation scenarios of the so called physical secret one-way architectures are demonstrated. Vehicular production is shared by many sub-contractors integrating many sub-units; therefore a multi-identity certification scheme is required. A personalization scenario is also shown to accompany the production process such that controllable production license agreements can be fairly enforced. The proposed identity is dynamic in a sense that even if a cloning attack was successful at some time point, it would be soon identified within later few transactions. This fact is frustrating for system attackers as the attack's efforts are huge; and the benefit out of a successful attack becomes negligible.