BMW 520i

From the driver’s seat, there’s little that differentiates the 2023 BMW 4-series from the 3-series sedan on which it’s based, and that’s a good thing. But on the outside, the two-door body style and oversize twin-kidney grille give the 4-series a look entirely different from its four-door, 3-series counterpart. Practicality takes a back seat here, literally, as the 4-series’ rear seat is snug; nor is its trunk as spacious as the 3-series’ cargo hold. But if anyone cares, they can opt for the 3-series sedan. The 4-series duo is stylish, quick, and refined as you’d expect BMWs to be. What’s missing, however, is the brand’s traditionally sharp handling, especially if you go with the entry-level 430i model, which comes with a turbocharged four-cylinder engine. Opt for the more powerful M440i, which sports a rambunctious turbocharged inline-six, and things get a lot more interesting—but even its backroad moves aren’t as special as we would hope. The 4-series Gran Coupe exists for buyers who want both swoopy styling and four doors, but we review that model separately.