I am a realist. And speak from personsal experience.
I had a battery failure in my Panamera PHEV midway through the sixth year of ownership. With ~65k miles on the clock.
It took nine months for Porsche to approve and complete the repair.
The total cost of the repair exceeded the car's value. But Porsche were bound and determined to not buy the car back, thus ensuring a miserable experience for me and everyone else involved.
I do not believe that hope is a valid strategy.
YMMV