Think of a car's original price as a full tank. Depreciation is how much has drained away; resale value is how much is left. If a $40,000 car is worth $24,000 after five years, it has depreciated 40% and retained 60% of its value. Same fact, two framings.
The one number that ties them together
Value retention is the bridge: retained value = 100% − depreciation. We express this as a resale score — the share of original value a model keeps after five years. Across the models we rank, the typical car retains about 68% of its value at five years (a 32% loss), but the spread between the best and worst is wide. A higher resale score always means slower depreciation.
Why the distinction matters when you buy
As a buyer, depreciation is your friend: it is the discount you inherit by purchasing used. A model that depreciates quickly can be a genuine bargain a few years in — you just want to avoid being the owner who takes that loss. That is why the two useful questions are “how fast does this depreciate?” and “where on the curve am I buying?”
Why it matters when you sell
As a seller, resale value is what you actually collect. A car that held its value protects your money; one that depreciated hard means a smaller cheque. Knowing your model's curve tells you whether to sell now or whether waiting will cost you more in value than it saves you in use.
How to use both
Start from the resale rankings to see which models depreciate slowly, then open a model to read its year-by-year curve. To put dollars on it for a specific price, use the depreciation calculator.