Great thread, and interesting to see that we dont drive old cars because we have to, its because: 1. they are nicer to drive, 2. they are cost effective, 3. the modern alternative is an unpleasant veneer of what Porsche was, - excepting a few GT models.
Going specifically to the brand question, I see it in a state of glacial progress, as are all brands.
Eventually they can become a victim of their success, some examples woould be :- the Cortina in the 1970's did it for Ford, BMW 3 Series in the 80's for BMW, Merc C&E-Class, in the 90's for MB, 996 for Porsche in 00's? These cars all sold strongly on the back of a broad appeal following a good previous model, coupled with weak competitive models around at the time - they made good profits because the bean counters engineered cost out in a short-term thinking error. Then 10 years later, the roads and autotrader are littered with cheap poorly maintained used examples which really harm "the brand". This is especially so if the subsequent models do not move the game on.
Porsche need to be careful of : Motorsport neglect, Product durability, Loyal customer contempt (£30k depreciation on a 997 turbo in 1 year), perhaps in the future, the temptation to do a new Seat sports car using the 996 as a base model, actually - that may not be so bad an idea.....(dont mention Skoda, I understand they have a strong distant heritage)
I know what it was, but what is "Porsche" ??
George