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Mercedes-Benz GLC vs BMW X3: Which Diesel Luxury SUV Should You Buy in 2025?

Vinay Kamboj
Mercedes-Benz GLC vs BMW X3

Mercedes-Benz GLC vs BMW X3 – this is one of the most common dilemmas for luxury SUV buyers in 2025, especially those still leaning toward diesel power. Both models offer strong brand appeal, punchy engines, and advanced tech, but which one should take a spot in your garage? Let’s compare them head-to-head to find out.

1. Design and Road Presence

Mercedes-Benz GLC:
The latest-generation GLC exudes elegance with its clean surfaces, smooth LED light signatures, and curvaceous proportions. The large grille with the signature three-pointed star gives it a premium identity that stands out, especially with AMG Line styling packs.

BMW X3:
The BMW X3 opts for a sportier and more muscular appearance, with bold creases, a wider kidney grille, and a more upright stance. It looks aggressive and confident, and M Sport variants further enhance its athletic character.

Verdict:
Choose the GLC if you prefer sophisticated luxury. Go for the X3 if sporty road presence matters more to you.

2. Interior and Features

Mercedes-Benz GLC:
The GLC’s cabin is arguably the most futuristic in its class. The 11.9-inch vertically stacked touchscreen flows smoothly into the dashboard, paired with a 12.3-inch digital driver display. Materials are top-notch, and ambient lighting adds a dramatic flair. Key features include wireless Apple CarPlay/Android Auto, ADAS suite, a panoramic sunroof, Burmester sound system, and powered front seats with memory.

BMW X3:
BMW’s cabin is more conventional but extremely functional and well-built. The 12.3-inch iDrive screen and digital instrument cluster are crisp and responsive, though not as flashy as the GLC’s setup. Features include a Harman Kardon sound system, 3-zone climate control, gesture control, head-up display, and wireless phone integration.

Verdict:
The GLC offers a more tech-forward and luxurious cabin, while the X3 leans towards driver-centric functionality.

3. Diesel Powertrain and Performance

Mercedes-Benz GLC 300d 4MATIC:

BMW X3 xDrive20d:

Verdict:
The GLC clearly wins on paper with significantly higher power and torque figures, making it quicker and more refined in high-speed driving. The X3, however, feels more connected to the road and is slightly more engaging to drive, thanks to its dynamic chassis tuning.

4. Ride Quality and Handling

Mercedes-Benz GLC:
With its comfort-oriented suspension setup, the GLC delivers a plush ride over most road surfaces. It’s ideal for urban commutes and long-distance cruising, soaking up bumps effortlessly. However, in corners, it leans a bit more than the X3.

BMW X3:
The X3’s ride is on the firmer side, which pays dividends in handling. It feels more planted and responsive, especially on twisty roads. For enthusiasts, it offers a more rewarding driving experience.

Verdict:
GLC for comfort, X3 for driving thrill.

5. Fuel Efficiency

Real-world figures will depend on driving habits, but both are fairly efficient for luxury diesel SUVs.

6. Price and Value

While the GLC commands a premium, it also offers more power, tech, and luxury features. The X3 undercuts it slightly but lacks the punch of the GLC 300d.

Final Verdict: Which One Should You Buy?

Category Winner
Design & Presence Tie
Cabin & Features Mercedes-Benz GLC
Engine & Performance Mercedes-Benz GLC
Ride & Handling BMW X3
Value for Money BMW X3
Overall Luxury Experience Mercedes-Benz GLC

Pick the BMW X3 xDrive20d if you value sporty handling, solid build quality, and a more connected driving experience — all at a slightly lower cost.

Either way, you’re getting a world-class diesel SUV that blends power with panache. It all comes down to whether you lean toward luxury or driving involvement.

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