Comparisons · 2025

2025 Hyundai Sonata Hybrid vs 2025 Kia K5

The 2025 Hyundai Sonata Hybrid uses less fuel: 5.0 against 8.7 l/100km, about 43% less. At today's US fuel prices the 2025 Hyundai Sonata Hybrid costs about $3,283 less to fuel over five years at 15,000 km a year. Both hold the same NCAP overall rating.

2025 Hyundai Sonata Hybrid leads on 3 of 3 measurable figures. 15 specifications compared.

Hyundai2025 Hyundai Sonata HybridFull specifications →vsKia2025 Kia K5Full specifications →

Key figures

Combined fuel consumption
2025 Hyundai Sonata Hybrid5 l/100km
2025 Kia K58.7 l/100km
CO2 emissions
2025 Hyundai Sonata Hybrid116.8 g/km
2025 Kia K5205.7 g/km
Kerb weight
2025 Hyundai Sonata Hybrid1,627 kg
2025 Kia K51,607.1 kg
Owner complaints
2025 Hyundai Sonata Hybrid11
2025 Kia K551
NCAP overall rating
2025 Hyundai Sonata Hybrid5
2025 Kia K55

Side by side

The better figure is highlighted where one is clearly better.

Specification2025 Hyundai Sonata Hybrid2025 Kia K5
CO2116.8 g/km205.7 g/km
Combined5 l/100km8.7 l/100km
Complaints1151
Cylinders44
Displacement2,000 cc2,500 cc
DriveFront-Wheel DriveFront-Wheel Drive
Emission standardL3SULEV30L3SULEV30
Extra-urban4.6 l/100km7.1 l/100km
FuelRegular GasolineRegular Gasoline
Gears68
Gross weight2,075.2 kg2,049.8 kg
Kerb weight1,627 kg1,607.1 kg
NCAP overall55
TransmissionAutomatic (AM-S6)Automatic (AM-S8)
Urban5.3 l/100km10.2 l/100km

More on these cars

2025 Hyundai Sonata HybridAll Hyundai model years2025 Kia K5All Kia model years

Other 2025 comparisons in this class

2025 Hyundai Sonata FWD vs 2025 Kia K52025 Hyundai Sonata AWD vs 2025 Kia K5 AWD

How this comparison works

Only genuine rivals are compared: same model year, same EPA size class, same drivetrain, similar weight and power, and both mainstream or both premium brands. Figures come from FuelEconomy.gov, EPA and NHTSA; fuel costs use current US prices from the Energy Information Administration.

Compare them yourself

Fuel savings and break-evenBreak-even distance for a more economical vehicle · Fuel price at which two vehicles cost the same · Running cost per 100 kmPower-to-weightPower-to-weight ratio · Torque-to-weight ratio · Power needed for a target ratioTotal cost of ownershipTotal cost of ownership · Yearly depreciation rate · Projected future valueAcceleration and quarter-mileForce and power for a target acceleration · Theoretical best 0–100 km/h time · Quarter-mile time and trap speed

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