I do not know if this is useful at all, but I found this:
https://www.rockauto.com/repairindex/
What I would really like would be to show the most common parts ordered for each make and model, with more information from there. If I compare an 80s Kia and a Lexus, the Lexus parts would undoubtedly cost more, but keeping a thirty year-old Korean car running would probably cost a great deal more.
By the way, I saw some mechanic rant on YouTube that he ordered a part from RockAuto that was missing a piece. He installed it anyway, but told everyone to stop ordering from them because they would not send that single piece.
The comments were not kind to him.