1999 911 Carrera

1. Comparable market$37.2K

   58 of the same trim advertised at around 58,983 mi.

2. Mileage-45.3%$20.4K

   543,591 mi against 58,983 mi, the mileage the cars it is priced against carry. This cohort gives up 24.7% of its value each time the odometer doubles. That curve was read off cars between 14,046 mi and 132,843 mi, and nothing has been observed beyond it, so the mark is struck at 265,686 mi rather than carried out to this reading. Confidence is low until a car near this odometer is advertised.

3. Model year+0.4%$20.4K

   A 1999 against a cohort centred on 2002.

58 cars, model years 1999–2004, asking prices spread ±21%.

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