2008 Cayman S

1. Comparable market$31.6K

   15 of the same trim advertised at around 57,723 mi.

2. Mileage+54%$48.7K

   2,793 mi against 57,723 mi, the mileage the cars it is priced against carry. This cohort gives up 18.1% of its value each time the odometer doubles. That curve was read off cars between 21,907 mi and 101,048 mi, and nothing has been observed beyond it, so the mark is struck at 10,954 mi rather than carried out to this reading. Confidence is low until a car near this odometer is advertised.

15 cars, model years 2006–2008, asking prices spread ±9%.

Struck from advertised cars and adjusted to this one. Indicative only.