Purchased a 1999 Boxster with 66,000 miles on it.  Owned by a person that really took good care of it.  Performed all maintenance with records to prove it.
It just turned 70,000 miles and the Tiptronic transmission just quit working.  I now need a rebuilt or used transmission.  I can't believe that it is broken.  I have been very careful to drive in a safe and reasonable manner.  You would think that these cars could take it.  Guess they are just as bad as the Mercedes SL series.  I owned one of these and it was a hole that I poured money into.  This will be my last German car.  I will go back to Japanese vehicles that seem to run forever without major problems.