Originally Posted by Ressy

With all the due respect, but according to what you say all accidents caused, example, by a blown-tyre should be imputed to a car manufacturer? Maybe after 4 years too?
As everyone know here there are some parts which are covered by warranty even after 10 years ( I got my Cayenne's gear box changed after 7 years for free) but there are other like clutch/some brake-parts/BATTERY/etc etc which are not as their conditions depend on how the driver use/maintain the car.
I am sure Kevin1244 has just been very unlucky and he keeps his cars as if they were new but unfortunately Porsche does not know about it... and in fact what PCNA answered is pretty much obvious...
You will not be buying the Panamera maybe but do no think that at BMW/Mercedes/Audi... they will change your faulty battery after 4 years... no way!