You can select the average cost of specific vehicles but most Tesla models are too new to have numbers. The S is over $1k annual costs. On average Dodge $634, Ford $775, Chevy $649, Ram $858, Honda $428 and Toyota $441
It is interesting to follow the links, looks like most of the article I originally linked was from a Jalopnik article where they had this explaining the JD Power ranking
https://jalopnik.com/advisor/tesla-maintenance-cost/
"J.D. Power reported an average of 176 mechanical issues per 100 Tesla vehicles, compared to an industry average of 121 issues."
I still don't see how they could be that mechanically problematic. I'd have to find what they consider a mechanical problem, for all I know it could be plastic fitment on dash trim.