BMW 5 Series vs Kia K4

The BMW 5 Series is one of three cars that prove the country known for Autobahns, the Nürburgring, and Oktoberfest builds the best luxury sedans on the planet. It competes with the Audi A6 and Mercedes-Benz E-Class, each taking a distinct approach to design but measuring up closely in other parameters. The 2026 5 Series is virtually unchanged, entering its third year following a 2024 redesign, and this review is about the 540i xDrive model.

Verdict: Putting BMW’s love-it-or-hate-it design aside, the 2026 540i xDrive is a sensational automobile offering the right blend of luxury, technology, and performance. Choose the M Sport setup for maximum driving enjoyment, or stick with the standard specification to emphasize luxury. Either way, the styling is the most controversial thing about the 5 Series.

Kia’s new compact sedan replaces the oft-overlooked Kia Forte, an option that traded on value more than merit. Although the Forte provided practical packaging and decent performance (particularly in GT trim), shoppers driving home in a Forte were usually doing so because it was cheaper, rather than better, than the competition. With a revamped design and an impressive suite of standard tech, the new 2025 Kia K5 doubles down on the Forte’s fortes–particularly cargo space–while adding attractive features and retaining fuel efficiency and an affordable price tag.

Verdict: The 2025 Kia K4 is better than the outgoing Kia Forte. It offers more impressive tech, more standard safety features, more passenger space, and more cargo space. It’s still not quite as satisfying to drive as the segment leader, but with a starting price hovering around $22,000, it’s a far sight less expensive, too.