Of every category CarCostCX analyzed across more than 43,000 new vehicles, one result stood out above the rest. The 2026 Mazda MX-5 GT, a two-door hardtop convertible, costs 55.7% less per month than the average vehicle in its category, the widest margin found anywhere in the analysis. At a sticker price of $34,371, the MX-5 GT's complete monthly cost comes to $1,091, a savings of $1,369 a month compared to its segment's average of $2,460. The loan payment, at $695 a month, accounts for most of that gap. Insurance runs $100 a month, fuel comes to $186, maintenance adds $60, and title and registration add $50. The result challenges a common assumption, that a sports car is automatically an expensive vehicle to own. In this case, a well-equipped, genuinely fun-to-drive roadster costs meaningfully less per month than the typical new sedan average of $1,121, once loan, insurance, fuel, and maintenance are all counted. For a buyer comparing options purely on complete monthly cost, the MX-5 GT is not a compromise. It is one of the most efficient vehicles on the market to own.

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