Please link to those court cases.

Here's a lawyer's take on it [1]. Although I'm not sure if its EU specific or NL specific. According to [2] [3] [4] there are some differences between NL and EU on this account. They specifically mention the car example in those sources, btw.

[1] https://blog.iusmentis.com/2018/09/27/honderden-klachten-ove...

[2] http://www.conformiteit.nl/conformiteit-conformiteitbeginsel...

[3] http://www.conformiteit.nl/gebruiksduurverwachting.html

[4] http://www.conformiteit.nl/economische-levensduur.html