I am surprised that nobody has brought this up yet, but it seems to me the best confidence a manufacturer has in its vehicles is the duration of the warantee.
Seems the big three have pretty wimpy warantees. 55k? lol.
10 years sounds about right.
I have a BMW Z3, and run the piss out of it. Redline it pretty much every time I take it out. BMW has pretty bad warantees, but it is not because they don't last. It is to make money on regular maintenance. The rape you on that.
And the only company which believes in 10 years is Hyundai/Kia.
But only if you keep the car... the extra warranty is non-transferable.
Get rid of that and GM and Ford have the best warranties in the business...