Performance, power and 0-100 km/h
2025 GMC Terrain AT4 has the quicker recorded 0-100 km/h time at 7.5 seconds, compared with 9.2 seconds for 2024 SEAT Tarraco 1.5 TSI 150 Xcellence. 2025 GMC Terrain AT4 has the higher listed output at 252 hp; 2024 SEAT Tarraco 1.5 TSI 150 Xcellence is rated at 150 hp, a difference of 102 hp. The torque figures follow 2025 GMC Terrain AT4 at 370 Nm and 2024 SEAT Tarraco 1.5 TSI 150 Xcellence at 250 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
2024 SEAT Tarraco 1.5 TSI 150 Xcellence has the lower recorded consumption at 7.2 L/100km; 2025 GMC Terrain AT4 is listed at 9.0 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 GMC Terrain AT4 provides the larger quoted cargo volume: 648 litres versus 230 litres, a difference of 418 litres. 2024 SEAT Tarraco 1.5 TSI 150 Xcellence is 77 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
2024 SEAT Tarraco 1.5 TSI 150 Xcellence has the lower listed starting price at $35,500, compared with $38,400 for 2025 GMC Terrain AT4. 2025 GMC Terrain AT4 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.