Hope others with more expertise can chime in, but I can share this.
Looking at my last two myfico pulls my auto scores have gone up as my Fico 8 has gone up - not equal points but rising. All the scores are in the same range (fair/good at the time of these reports).
I've never had an auto loan, but I do have student loans, and a mortgage, so they likely contribute as they show a long history of paying down a large debt.
