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Nissan 370Z vs Porsche Boxster: 5-year value retention (73% vs 56%), resale value, and cost of ownership head-to-head. Nissan 370Z holds its value better.
On five-year value retention the Nissan 370Z comes out ahead, holding about 73% of its value versus 56% for the Porsche Boxster. Over the first five years the Nissan 370Z loses roughly $8,534 while the Porsche Boxster loses about $14,486 — a gap near $5,952.
First-year drop is the biggest factor: the Nissan 370Z sheds about 5% in year one versus 12% for the Porsche Boxster. If you buy used, the steeper early drop is what the original owner absorbs.