2025 Mazda MX-5 Miata

Skyactiv-G

2.0L I4

A naturally aspirated, high-revving four that pulls eagerly toward a 7,500 rpm redline, delivering its joy through revs and crisp throttle response rather than turbo torque, perfectly suited to the lightweight roadster.

Part of Mazda's Skyactiv-G family, engineered around a high compression ratio for efficiency without forced induction; the MX-5 application was specifically revised for a higher rev ceiling and sharper response.

• It runs a high 13:1 compression ratio yet remains naturally aspirated.
• Peak power arrives near 7,000 rpm, with the engine staying smooth all the way to its raised 7,500 rpm limit.
• Mazda has publicly committed to keeping the MX-5 light, naturally aspirated, and manual-capable, bucking the industry move to turbos.