I'm interested in the reliability of cars and I suspect a few other car nerds / enthusiasts are too. There is no perfect measure but one tool I've come across is the J.D. Power Vehicle Dependability Study. Information about their study is here:
I am a bit of an Excel fan and when I was playing around with the J.D. Power data I was frustrated that the information was firstly, all posted as images, and secondly, not available in one page over time, so it was difficult to compare. I spent a bit of time manually entering the data into a spreadsheet. I found it interesting to compare my expectations against the study data. For example, I was interested to see how some Euro and US brands perform much better in the study than I expected. It's also great to see Kia's rise from performing the absolute worst in 2003 to among the best in 2021.
Just to clarify, I have no affiliation with J.D. Power whatsoever.
Here is the spreadsheet: