Purchase of New Vehicle Used for Personal, Side Hustle & Ministry

How does purchasing to a new vehicle (with auto loan) vs very old vehicle (NO loan for many years) impact Fed and Wisconsin tax reporting & deductions?  It's a (main/only) Personal Vehicle used % for personal/regular employment, and % for small side hustle business & ministry.  Main income is actually W2 for 2023, but that may also change in 2024.