Totally agree, I want to know what or of warranty cost of ownership is.
Especially since most auto manufacturers only design for say ~10 year reliability. Sure we could make a a part that would last forever, but it’d be heavy (bad for fuel economy) and expensive, so let’s make the lightest and cheapest part that will last about x years (we still want all that spare part revenue too!)
That's fine making it light, but you have to engineer the car so you can get at it reasonably.
There is zero reason to put a battery in a wheel well for instance. What did it make the car $1 cheaper to make? Forget the battery till the end of the design?
Especially since most auto manufacturers only design for say ~10 year reliability. Sure we could make a a part that would last forever, but it’d be heavy (bad for fuel economy) and expensive, so let’s make the lightest and cheapest part that will last about x years (we still want all that spare part revenue too!)