2024 Mercedes-Benz GLC-Class GLC300: A Substantive Step Forward For The GLC

Published April 2026
2024 Mercedes-Benz GLC-Class GLC300: A Substantive Step Forward For The GLC
2024 Mercedes-Benz GLC-Class GLC300: A Substantive Step Forward For The GLC Close
Overall Rating
8/10
Powertrain & Performance
8/10
Fuel Efficiency
7/10
Interior Comfort
8.5/10
Exterior Design
8/10
Safety & Driver Assistance
8.5/10
Pricing & Value
8/10

Luxury, Technology and Everyday Refinement

The X254 generation marks a substantive step forward for the GLC in the mid-size luxury SUV segment. The 2024 Mercedes-Benz GLC-Class GLC300 arrives on a new architecture with a revised mild-hybrid powertrain, a cabin that credibly competes with the best in class, and standard technology ahead of several direct rivals. For buyers approaching the used X254 market, the question is how to read a particular example correctly.
2024 Mercedes-Benz GLC-Class GLC300: A Substantive Step Forward For The GLC
2024 Mercedes-Benz GLC-Class GLC300: A Substantive Step Forward For The GLC Close

Performance & Driving Experience

Powertrain & Performance:

8/10

The 2.0-litre turbocharged four-cylinder produces 190 kW and 400 Nm, supplemented by a 48-volt integrated starter generator contributing 17 kW and 200 Nm under load. The nine-speed 9G-TRONIC is well matched to the powertrain, with a claimed 0 to 100 km/h time of 6.3 seconds and 4MATIC all-wheel drive standard.

2024 Mercedes-Benz GLC-Class GLC300: A Substantive Step Forward For The GLC
2024 Mercedes-Benz GLC-Class GLC300: A Substantive Step Forward For The GLC Close

Efficiency & Real-World Running Costs

Fuel Efficiency:

7/10

Claimed combined consumption is 7.7 L/100km, with Australian road tests recording closer to 9.1 L/100km in mixed use on the 62-litre premium-unleaded tank. The five-year capped-price service plan totals approximately $6,455, material to total cost of ownership for any 2024 Mercedes-Benz GLC-Class GLC300 review.

Cabin Quality & Comfort

Interior Comfort:

8.5/10

The cabin is where the 2024 Mercedes-Benz GLC-Class GLC300 makes its strongest argument. The 11.9-inch portrait MBUX touchscreen pairs with a 12.3-inch digital driver display and standard head-up display. Wireless Apple CarPlay and Android Auto, wireless charging, a panoramic electric sunroof, and powered front sports seats with memory and heating are standard. AMG Line interior trim is fitted across every variant. Boot capacity is 545 to 1,490 litres with the rear seats up and folded respectively, suiting family use and interstate touring.

Design & Presence

Exterior Design

8/10

The X254 reads as more resolved than its predecessor, with cleaner proportions, taut surfacing, and a more assertive bonnet-to-grille transition. AMG Line exterior styling is standard across the Australian range. Twenty-inch alloys are fitted in a staggered 255/45 R20 front and 285/40 R20 rear configuration. Dimensions sit at 4,771 mm long, 1,890 mm wide, 1,600 mm tall.

Safety & Driver Technology

Safety & Driver Assistance

8.5/10

Safety features include:

• Autonomous emergency braking

• Active lane keeping

• Blind spot assist

• Adaptive cruise control

• 360-degree camera

• Ten airbags

• Augmented reality navigation integrated within MBUX

The X254 GLC 300 holds a 5-star ANCAP rating tested in 2023, with adult occupant protection at 92 per cent and safety assist at 84 per cent.

Value & Ownership Experience

Pricing & Value

8/10

The 2024 Mercedes-Benz GLC300 benefits from being part of Mercedes-Benz's latest-generation mid-size SUV range, combining modern technology, premium refinement and strong brand appeal. Factors such as the optional Plus Package, complete service history and up-to-date software can significantly enhance long-term desirability and ownership satisfaction.

The GLC300's blend of comfort, technology, practicality and premium build quality makes it a compelling choice for buyers seeking a luxury SUV that feels equally at home on the daily commute or a long-distance road trip.

Our Verdict

Overall Rating 8/10

Final Verdict: Should You Buy the 2024 Mercedes-Benz GLC 300?

The 2024 Mercedes-Benz GLC-Class GLC300 is a substantively better car than the X253, and within the used mid-size luxury SUV segment it presents as one of the more complete propositions available. The qualifications are clear: servicing costs are material, real-world fuel use sits above the claim, and run-flat tyres on the standard 20-inch wheels shape ride character. Cross-shoppers will consider the Audi Q5, BMW X3, Volvo XC60, and Lexus NX 350.

At MCT Motorsport, we review each prestige SUV in our inventory with the provenance discipline this generation deserves. Speak with our team to confirm Plus Package fitment, service history, and software currency on any example.

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