Easy fix—Park in the garage!
I had mice eat through wires on my car in my garage..so far the new dog has been good at chasing them away.
Sorry, that's not always successful. During an especially hard winter I had a rat problem. They somehow got into my very clean neat suburban garage and made a nest between the interior and exterior. Chewed through the wiring harness. I found out the hard way when the electrical system went out suddenly in the middle of a intersection at dusk. Just peachy.
Because mice can never get into a garage.