A Hardware Secure Module (HSM) is often installed in the Electronic Central Unit (ECU) to include security features in the in-vehicle architecture, which has become more critical due to the fast expansion of IT in the automotive sector. Hence, the HSM’s built-in hardware accelerators may perform secret cryptographic calculations, enforcing secure communications. No universally accepted method exists for developing the framework of an automotive HSM. The car industry hopes for a standard automotive HSM architecture to meet consumers’ rising performance demands and ward against future assaults by malicious actors using large-scale quantum computers. Researchers are looking at post-quantum cryptography (PQC) to ensure that future HSMs will still be secure in anticipation of the advent of quantum computers. They provided new sets of hardware accelerators for the next generation of automotive HSMs after analysing the candidates in NIST's PQC process for standardization. Based on our testing, it is possible to construct a post-quantum safe automobile HSM that satisfies the stringent standards set by today’s electronic central unit.