Kia K5 vs Mercedes-Benz S-Class

The 2025 Mercedes-Benz S-Class is an automotive icon that fulfills its lofty expectations for comfort, performance, technology, and refinement. Last redesigned for the 2021 model year, Mercedes’ flagship sedan receives only small changes for 2025, including newly standard features like digital key functionality and a center airbag, some additional paint colors, and wider availability of the AMG Line trim package.

Verdict: Quite simply, the S-Class is the best luxury sedan that doesn't wear a Bentley or Rolls-Royce badge. With several models to choose from and a dizzying array of options, there seems to be a perfect match for a variety of tastes, provided you have a six-figure budget.

Kia has updated the stylish 2025 K5 with new exterior lighting, revised front and rear styling, and redesigned wheels. The only turbocharged version is now the GT sports sedan; other K5 models have a 2.5-liter four-cylinder with less real-world driving punch than the previously-standard turbo four. New technology, redesigned dashboard controls, and more standard features are also on the menu, and Kia’s family car remains a good value.

Verdict: Unfortunately, the 2025 Kia K5 still doesn’t offer a hybrid powertrain like its corporate cousin, the Hyundai Sonata, does. It’s also less enjoyable to drive, thanks to this year’s engine swap. However, the new tech impresses, the K5 remains stylish and comfortable, and it costs less than some rivals.