2000 Boxster 2.7 with about 53,000 miles on the clock. My maintenance expenses have totaled $12,642 since new or about 24 cents per mile. I do the annuals myself (oil, filter, etc.) but the other stuff is done by indies. The big items have been tires, coolant reservoir (two times), water pump (replaced at 45,000 miles as a precautionary measure based on the Excellence recommendation - the replaced pump was fine) and the cam adjuster ($2,148).
In comparison, our 2002 Acura MDX has cost a little under 10 cents per mile and now has around 235,000 miles on it. At the same mileage (~53,000 miles) it had cost less than 3 cents per mile.
