I own a few other Classics where parts are theoretically very difficult.

In every case someone somewhere has the bits or knows where to get them made. I have no fears whatsoever about the long term parts position for the M3W.

I am also confident that the values of our cars will not suffer in the slightest from the cessation of production and rarity, probably the opposite.

As M3W55 says, they are such fun. Any shortcomings are massively outweighed by everything else.