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Mazda MX-5 Miata vs Subaru WRX Sti: 5-year value retention (66% vs 66%), resale value, and cost of ownership head-to-head. Mazda MX-5 Miata holds its value better.
On five-year value retention the Mazda MX-5 Miata comes out ahead, holding about 66% of its value versus 66% for the Subaru WRX Sti. Over the first five years the Mazda MX-5 Miata loses roughly $10,408 while the Subaru WRX Sti loses about $13,580 — a gap near $3,172.
First-year drop is the biggest factor: the Mazda MX-5 Miata sheds about 2% in year one versus 10% for the Subaru WRX Sti. If you buy used, the steeper early drop is what the original owner absorbs.