Performance, power and 0-100 km/h
2025 Mazda CX-30 2.0 Skyactiv-G has the quicker recorded 0-100 km/h time at 9.6 seconds, compared with 10.2 seconds for 2025 Kia Stonic 1.0 T-GDi. 2025 Mazda CX-30 2.0 Skyactiv-G has the higher listed output at 150 hp; 2025 Kia Stonic 1.0 T-GDi is rated at 120 hp, a difference of 30 hp. The torque figures follow 2025 Mazda CX-30 2.0 Skyactiv-G at 213 Nm and 2025 Kia Stonic 1.0 T-GDi at 200 Nm. These figures describe straight-line potential only; they do not establish braking performance, ride quality, steering response or durability under repeated hard use.
Range, battery, charging and efficiency
2025 Kia Stonic 1.0 T-GDi has the lower recorded consumption at 5.8 L/100km; 2025 Mazda CX-30 2.0 Skyactiv-G is listed at 6.5 L/100km. Test cycle, temperature, wheel size and charging conditions can materially affect these results, so only figures measured on the same basis should be treated as directly comparable.
Dimensions, cargo space and towing
2025 Mazda CX-30 2.0 Skyactiv-G provides the larger quoted cargo volume: 430 litres versus 352 litres, a difference of 78 litres. 2025 Mazda CX-30 2.0 Skyactiv-G is 255 mm longer overall. Exterior size is not a benefit by itself: a longer body may create useful room, but cargo shape, rear-seat space and ease of parking still require a physical inspection.
Price and overall assessment
2025 Kia Stonic 1.0 T-GDi has the lower listed starting price at $22,400, compared with $24,325 for 2025 Mazda CX-30 2.0 Skyactiv-G. 2025 Mazda CX-30 2.0 Skyactiv-G leads in more of the shared headline fields, but that is not a universal verdict: a buyer should weight price, performance, range and utility rather than simply count category wins. The assessment is based on the specifications shown here; it is not presented as a two-car road test.