EVs, before you buy one you need to think ...., page-67

"We do around 15 000kms per year. Consumption of our old diesel car was (generously) 8.2l/100kms, giving fuel cost over a 5 year period of about $12 000."

Balanced and reasonable anecdote, I think, with $12k being a figure representative of the median experience (even though your 15,000km would be meaningfully higher than the average vehicle usage0.

Another piece of the jigsaw puzzle is the higher insurance cost of EVs:

https://www.drive.com.au/caradvice/why-are-electric-cars-more-expensive-to-insure/