We've updated our reliability stats for the Boxster to include owner experiences through June 30, 2013. (Another source is about 14 months behind.)
Repair frequencies, in terms of repair trips per 100 cars per year:
2008 Boxster: 32, low
2007 Boxster: 49, moderate
2006 Boxster: 22, low
2005 Boxster: 25, low
2004 Boxster: 40, low, small sample size
2003 Boxster: 43, low
2002 Boxster: 63, low
2001 Boxster: 49, low
2000 Boxster: 37, low
1999 Boxster: 71, low
We have two additional statistics, "Nada-odds" and "Lemon-odds", to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:
2008 Boxster: 72, < 1
2007 Boxster: 65, < 1
2006 Boxster: 86, < 1
2005 Boxster: 81, < 1
2001 Boxster: 62, < 1
We'll have further updates in November and February.
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Porsche Boxster reliability ratings and comparisons