Well, if you did not get the clue about COG on 4 pages, you can only learn more things later.
It is only common that thread divert on side topics and IMHO that is good thing as that keeps them alive, when there is not much to add on original subject.
It is still good that the thread survived troll attacks, survived moderation and smart-ass comments.
Continuing about new technology, I used to own 1st generation of digital cars and happen to continue contacts with new owners.
So 1997 and 1998 diesel cars both exceeded 300k miles without any major work.
Turn out what fails on computer controlled transmission is electrical connector that was design on the level of transmission fluid and about every 10 years the orings leak, when contamination fools electronic data transfer.
That puts transmission on 2nd gear limp (60 mph) and new connector cost $10
Obviously when you go to a shop with transmission in limp and 200,000 miles on odometer, they gladly present you with estimate on transmission replacement.