BMW iX3 vs. Mercedes-Benz GLC400: Electric SUV Showdown
Cars

BMW iX3 vs. Mercedes-Benz GLC400: Electric SUV Showdown

authorBy Jeremy Clarkson
DateOct 28, 2026
Read Time5 min

In an intriguing face-off, the latest electric SUVs from BMW and Mercedes-Benz, the iX3 and GLC400 respectively, undergo a rigorous comparison. While both vehicles exhibit impressive performance and technological advancements, they cater to slightly different driving philosophies. The BMW iX3, with its avant-garde design and responsive handling, proves to be an exhilarating choice for enthusiasts who value a dynamic driving experience. Conversely, the Mercedes-Benz GLC400 distinguishes itself through its superior ride comfort and practicality, making it a more compelling option for daily commutes and family errands. This detailed evaluation reveals how subtle differences in engineering and design can significantly influence the overall user experience in the burgeoning luxury electric SUV market.

Electric Titans Collide: The BMW iX3 and Mercedes-Benz GLC400

The esteemed automotive publication, Car and Driver, recently undertook a comprehensive comparison of two prominent electric luxury SUVs: the 2027 BMW iX3 50 xDrive and the 2027 Mercedes-Benz GLC400 4Matic Electric. This head-to-head battle was conducted to assess which of these German automotive powerhouses delivers a more refined and practical experience for the modern driver.

The BMW iX3 50 xDrive, with a starting price of $62,850 and an as-tested price of $75,050, features a dual-motor, all-wheel-drive configuration generating 463 horsepower and 476 pound-feet of torque. Notable optional packages on the tested model included the M Sport Professional package, Driver Assistance Professional package, Comfort package, Technology package, and Parking Assistance package, accumulating to a significant increase in its base price. Its exterior is marked by a futuristic aesthetic, characterized by correctly proportioned kidney grilles and a sleek headlight array. The interior presents a unique, parallelogram-shaped infotainment screen and a dash-spanning instrument cluster, dividing opinion among reviewers who either appreciated its innovation or found it unnecessarily unconventional.

On the other side, the Mercedes-Benz GLC400 4Matic Electric commenced at $64,950, with the test model reaching $84,975 due to various upgrades. This vehicle, also equipped with a dual-motor, all-wheel-drive system, boasts slightly higher power output at 483 horsepower and 590 pound-feet of torque, alongside a two-speed gearbox for enhanced high-speed efficiency. Its tested configuration included the Pinnacle Plus trim, MB.Drive Assist Pro, the Agility & Comfort package, and various AMG Line aesthetic components. While its exterior design is more evolutionary, retaining a familiar silhouette with updated taillights, its interior, particularly the optional A-pillar-to-A-pillar Hyperscreen, drew criticism for excessive screen real estate and fingerprint susceptibility, despite its user-friendly interface. Reviewers also noted some plasticky trim materials that felt inconsistent with the vehicle's luxury price point.

In terms of performance, both SUVs demonstrated impressive capabilities. The GLC400, despite being heavier at 5605 pounds compared to the iX3's 5186 pounds, edged out the BMW in acceleration, achieving 0 to 60 mph in 3.7 seconds, versus the iX3's 4.3 seconds. Braking performance was remarkably similar, with the GLC400 stopping from 70 mph in 160 feet and the iX3 in 163 feet. Both vehicles also exhibited near-identical roadholding on the skidpad, at 0.87 g and 0.88 g respectively. A notable parity was observed in their 75-mph real-world highway range tests, with both achieving 330 miles. The iX3, however, saw a greater disparity between its EPA estimated range of 392 miles (on 22-inch wheels) and its real-world performance, while the GLC400’s 350-mile EPA estimate was closer to reality. Charging speeds were competitive, with both averaging over 180 kilowatts.

The driving dynamics revealed distinct philosophies. The iX3's coil springs and passive dampers, especially with 22-inch wheels, were often perceived as too stiff on rougher Michigan roads, leading to discomfort. Its steering feel was also described as numb, though its acceleration and braking were widely praised. In contrast, the GLC400 garnered significantly more acclaim for its balanced ride and handling, particularly when equipped with the optional $2900 Agility & Comfort package, which includes air springs, adaptive dampers, and rear-axle steering. This setup provided a smoother ride over challenging surfaces, though some found it slightly too soft on perfectly smooth roads, a trait mitigated by switching to Sport mode. The GLC400 also offered superior sound isolation, contributing to a quieter cabin experience.

Ultimately, while the BMW iX3 offers a more engaging and futuristic driving experience that might appeal to those who frequent racetracks, the Mercedes-Benz GLC400, especially with the Agility & Comfort package, emerges as the more well-rounded and practical choice for the diverse demands of everyday life. Its blend of comfort, composure, and robust performance makes it a compelling contender for those seeking a luxury electric SUV for daily use.

This detailed comparison underscores a crucial point in the evolution of electric vehicles: performance metrics, while important, are only one part of the equation. As manufacturers like BMW and Mercedes-Benz push the boundaries of automotive engineering, the subtle nuances of user experience—from the tactile feel of the interior to the ride quality over varied terrain—become increasingly significant. For consumers, this means a wider array of choices tailored to specific preferences, whether that's the thrill of dynamic handling or the serene comfort of a daily driver. It also highlights the value of thorough, real-world testing to uncover these distinctions, guiding buyers towards a vehicle that truly aligns with their lifestyle and driving priorities. The electric SUV segment is rapidly maturing, and these comparisons are vital in showcasing the diverse innovations and philosophies driving its growth.

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