Here's what we know:
1. RMS is more frequent than IMS but less severe.
2. IMS is less frequent than RMS but more severe.
3. We know nothing about HOW frequent either of them are.
4. ALL "issues" during the warranty years MUST be producing waranty claims small enough to allow Porsche to keep highest profit margins in the industry.
5. Beyond the warranty years, unless third-party Extended Warranties for Porsches are multiples of times more expensive than those for other brands, ALL "issues" in aggregate couldn't possibly be that much worse than what is expected from other brands.
The free market is the greatest aggregator of data and the best indicator of trends.
Rich, freedom -- learn from it.
Z.