Exotic and collector car depreciation, by model

These figures show how much value each model lost, or is estimated to lose, over five years. They feed the presets in the calculator. Each row names its source, method and date.

Two kinds of iSeeCars data appear here, and they aren’t the same thing. Rows from the 2026 study are averages of real sales: over 950,000 five-year-old cars sold between March 2025 and February 2026. Rows marked as modeled estimates come from iSeeCars’ per-model pages, which run the automaker and segment through a formula. Those carry no date, and some cover cars too new to have five real years of resale history. The two can disagree sharply. The Porsche 911 lost 11.1% in the study; its model page shows 5.3%. We use the study figure where one exists.

The Hagerty rows are different again. They’re one quarter’s change in collector-market values from Hagerty’s October 1, 2026 Price Guide update. They aren’t new-car depreciation, and they aren’t calculator presets.

The per-year column converts each five-year loss into an even yearly rate: (1 − five-year loss)^(1/5) − 1. For the 911, 0.889 to the one-fifth power is about 0.977, or about −2.3% a year. The depreciation guide walks through it. Past values don’t predict future ones.