2027 Mercedes-Benz GLS vs 2026 BMW X3

BMW offers the 2026 X3 in two flavors: 30 xDrive and M50. The latter is tuned for performance, but the base X3 30 xDrive is so good that you might be happy trading the M50’s outright speed and sheer capability for significant savings. BMW redesigned this compact luxury crossover in 2025, and the only tweaks for 2026 make the base model look and feel a little more upscale inside.

Verdict: For this review, we evaluated the BMW X3 M50. It was terrific, but with a sticker price more than $15,000 higher than the rewarding X3 30 xDrive, it’s hard to justify the extra money.

The full-size, three-row GLS is for anyone who needs extra space and towing capacity in their luxury SUV. Mercedes also considers the GLS to be the SUV equivalent of its flagship S-Class sedan, so it can be equipped with virtually every feature in the automaker’s catalog. For 2027, the GLS receives updated styling, powertrains, and tech features. Its competition includes the BMW X7, the Cadillac Escalade, the Land Rover Range Rover, the Lexus LX, the Lincoln Navigator, and the all-new Audi Q9.

Verdict: The extensive updates don’t make as much difference as expected from behind the wheel, but that’s okay because the GLS was already a well-executed luxury SUV.