What depreciation actually is
Depreciation is the gap between what you paid and what you can sell the car for. For mainstream cars it dwarfs fuel, insurance and maintenance combined — a $40,000 sedan that's worth $20,000 in five years has cost you $4,000 a year in depreciation alone.
The first-year cliff
A new car typically drops 20–30% in value the moment it's driven off the lot and through the first 12 months. Buying a one-year-old example of the same car can save 25% with the warranty mostly intact.
Brands that hold value
Porsche 911s, Toyota Land Cruisers, Lexus LX, Jeep Wranglers, and Subaru WRXs are famous for depreciating slowly — sometimes only 35–40% after five years. Limited-production specials (Porsche GT3, Ferrari LaFerrari, Lamborghini Aventador SVJ) can appreciate.
Brands that depreciate fast
Luxury sedans (Mercedes S-Class, BMW 7 Series, Audi A8), most EVs (rapidly changing tech), and any car with a complex powertrain warranty risk lose 50–60% in five years. The reason: high MSRP, expensive out-of-warranty repairs, and a soft used market.
How to minimize it
Buy 1–3 years used. Pick popular colors (white, black, silver). Avoid odd option combos. Keep service records. Stay under average annual mileage (12k mi/yr in the US). And consider leasing high-depreciation cars instead of buying.