He should try to cancel the original purchase agreement on the grounds that now the functionality is available Tesla has demonstrated no intention of delivering it to him, thus voiding the original agreement. Normally if a judge agrees, you get a full refund without controlling for depreciation.

Class actions in the Netherlands mostly favor lawyers.

I guess that’s the point, FSD is not available. What you buy is lvl 4/5 available is lvl 2+.

I think, this is a calculation to understand if an upgrade of hw3 to hw4 actually solves the problem or if hw3 must be updated to hw5.

One upgrade is more economical than two, but I would be annoyed for sure as well.