Performance, power and 0-100 km/h
2025 Hyundai i30 1.5 T-GDi has the quicker recorded 0-100 km/h time at 8.2 seconds, compared with 9.4 seconds for 2025 Mazda3 2.0 Skyactiv-G. 2025 Hyundai i30 1.5 T-GDi has the higher listed output at 160 hp; 2025 Mazda3 2.0 Skyactiv-G is rated at 150 hp, a difference of 10 hp. The torque figures follow 2025 Hyundai i30 1.5 T-GDi at 253 Nm and 2025 Mazda3 2.0 Skyactiv-G at 213 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 Mazda3 2.0 Skyactiv-G has the lower recorded consumption at 6.3 L/100km; 2025 Hyundai i30 1.5 T-GDi is listed at 6.7 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 Hyundai i30 1.5 T-GDi provides the larger quoted cargo volume: 395 litres versus 358 litres, a difference of 37 litres. 2025 Mazda3 2.0 Skyactiv-G is 119 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 Mazda3 2.0 Skyactiv-G has the lower listed starting price at $23,900, compared with $26,800 for 2025 Hyundai i30 1.5 T-GDi. 2025 Hyundai i30 1.5 T-GDi 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.