2018 488 GTB

1. Comparable market$343K

   50 of the same trim advertised at around 10,584 mi.

2. Mileage-0.2%$342K

   10,684 mi against 10,584 mi for the cars it is priced against. This cohort gives up 13.9% of its value each time the odometer doubles.

3. Specification+1.2%$346K

   This car has 3 sought-after options. Comparable cars mostly do not.

4. Model year+2%$353K

   A 2018 against a cohort centred on 2018.

5. Asking to sale-4.5%$337K

   Advertised prices sit above where cars change hands, so the mark is struck below the asks it is drawn from.

50 cars, model years 2016–2019, asking prices spread ±6%.

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