I could see the Boxster getting an average, or above average rating in a long term study.
You just have to put it all into context. A Boxster is going to cost more to repair than your average car, and I am sure everyone who bought one new that before they bought it.
Second, all the RMS and IMS failure reports are
not representative of all Boxster's.
There a lot of Boxster's that have never had problems. Looking on the internet alone, will not give you clear results, because someone with a problem is more likely to search the internet for an answer vs. a person who has never had a problem. So you get more reports of problems on the internet, but not in proportion to all the Boxsters in the world.
If that makes any sense!