TopGun - "Firstly, "we" who inhabit this forum shouldn't celebrate that they are going the way of the dodo. Why should we care about sales volumes?
Secondly, catering to sales volumes may dilute the brand to the point where they become less desirable. Once you've done that, you're going to be unable to make cars at such high margin."
As to your "firstly", we care about sales volumes because without enough volume to be profitable, the makers will not/cannot make the cars that enthusiasts want. Enthusiasts are a small minority of car buyers.
"Secondly" - some truth there, but if maker has volume, high margins may not be required. But, this type of maker is likely more of a mass market maker (eg Toyota), than an enthusiast maker, (eg. Ferrari). So, it likely doesn't matter to the enthusiast if Toyota has diluted the brand or not. They were interested in the beginning.