Performance, power and 0-100 km/h
2025 Mercedes-Benz GLC 300 4MATIC has the quicker recorded 0-100 km/h time at 6.2 seconds, compared with 8.2 seconds for 2026 Kia Sportage PHEV AWD. 2026 Kia Sportage PHEV AWD has the higher listed output at 265 hp; 2025 Mercedes-Benz GLC 300 4MATIC is rated at 258 hp, a difference of 7 hp. The torque figures follow 2025 Mercedes-Benz GLC 300 4MATIC at 400 Nm and 2026 Kia Sportage PHEV AWD at 350 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
Range and energy-use figures are either not shared by both cars or not directly comparable across these powertrain types.
Dimensions, cargo space and towing
2025 Mercedes-Benz GLC 300 4MATIC provides the larger quoted cargo volume: 600 litres versus 540 litres, a difference of 60 litres. 2025 Mercedes-Benz GLC 300 4MATIC carries the higher towing rating at 2,400 kg, while 2026 Kia Sportage PHEV AWD is listed at 1,350 kg. 2025 Mercedes-Benz GLC 300 4MATIC is 201 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
2026 Kia Sportage PHEV AWD has the lower listed starting price at $39,990, compared with $48,950 for 2025 Mercedes-Benz GLC 300 4MATIC. 2025 Mercedes-Benz GLC 300 4MATIC 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.