In Brief
The Mercedes-AMG GLC 53 (2026) marks a return to a six-cylinder inline engine, delivering a more melodic exhaust note and compelling performance. Although peak output is a touch less explosive than its predecessor, the vehicle shines with its technology, comfort, and agility—surprising for a two-ton SUV. Yet France’s punishing tax regime, largely due to CO2 emissions, could complicate its market introduction. This model remains a showcase of Mercedes’ expertise in versatility and refined mechanical engineering.
Back to a more noble powerplant, even if it doesn’t push as hard!
Mercedes-AMG GLC (2026): A Very Different Namesake
We’ve recently discussed a brand-new GLC that is 100% electric. Same brand, same name as our gasoline-powered GLC, but a car that is completely different—not only in powertrain but also in platform, interior, and with a tax treatment that’s far more favorable. After branding its electric models as “EQ” (EQA, EQB, EQC, etc.), Mercedes returns to a more traditional naming scheme to avoid losing customers… but that can breed confusion!
Mercedes-AMG GLC (2026): a Six-Cylinder With Real Voice
The GLC 53 AMG gets an inline-six equipped with a turbocharger and an electrically driven supercharger. The result: torque everywhere, razor-sharp responses, and performance to match: 0–60 mph in 4.2 seconds with impressive high-end flexibility. Sure, it isn’t as explosive as the old 63 AMG with 680 hp that boasted 3.5 seconds, but the engine note is far more pleasant and melodic—still higher-pitched than Mercedes’ native V8s. That alone is a strong selling point!
Mercedes-AMG GLC (2026): Doomed at Taxation?
When Mercedes halved the number of cylinders in its GLC 63 AMG (from 8 to 4) in 2023 to cut its CO2 output and try to curb eco taxes in several countries, including France, the mission was accomplished. In that year, it was liable for a CO2 tax of €5,715. The 53 AMG of 2026, however, exceeds 200 g/km of CO2: it triggers an €80,000 CO2 penalty, thereby avoiding the weight tax since the car is already at the cap…
Mercedes-AMG GLC (2026): Polished Yet Complex
The GLC 53 AMG’s cabin is identical to that of the 63 AMG—high-quality presentation with seats offering excellent lateral support. The tall, responsive central display allows you to tune a wide range of settings, including the two wheel-mounted shortcut controls. Yet the ability to adjust ESP levels, transmission mapping, adaptive suspension, exhaust tone, driving modes, and even the Drift mode, ends up making the car a bit daunting to master.
Mercedes-AMG GLC (2026): Rear-Lock and Drift Mode
Mercedes equips the GLC 53 AMG with a formidable tech arsenal to maximize efficiency: rear-wheel steering, adaptive suspension with roll control, a multi-clutch rear differential, and even a Drift mode—an AMG first for the GLC. Verdict: a two-ton SUV that surprisingly forgets its heft and feels almost agile, with a rear axle that participates at will. And on demand, it can also be comfortable: it truly does it all!
The Auto-Journal Verdict: 3.5/5
Mercedes’s strategic choices can be mystifying. Yet let’s not deny the pleasures: this GLC 53 AMG and its six-cylinder powertrain perform well on every front, including driving enjoyment. But the tax regime is very likely to keep it from becoming a common sight on French roads.
Mercedes-AMG GLC (2026): The Numbers
Read our in-depth test of the Mercedes-AMG GLC in Auto-Journal issue No. 1212 dated June 25, 2026.
Comparative Table
| Model | Displacement | Power (hp) | 0–60 mph (s) | CO2 Emissions (g/km) | CO2 Penalty (€) |
|---|---|---|---|---|---|
| Mercedes-AMG GLC 53 (2026) | Inline-6 | – | 4.2 | >200 | 80 000 |
| Mercedes-AMG GLC 63 (2023) | 4-cylinder | 680 | 3.5 | – | 5 715 |
Key Takeaways
- The Mercedes-AMG GLC 53 (2026) returns to a six-cylinder engine, prioritizing mechanical refinement and a gratifying exhaust note.
- Performance remains strong, with a 0–60 mph time of 4.2 seconds.
- French taxation is highly punitive, with an environmental penalty reaching €80,000.
- The interior is meticulously finished, balancing comfort with a wide array of adjustable technologies.
- The overall tech package delivers agility, efficiency and comfort despite the vehicle’s two-ton heft.
- The model stands out for its versatility and level of equipment, though its presence on French roads may be limited by taxes.
FAQ
What is the main novelty of the Mercedes-AMG GLC 53 (2026)?
This model adopts a turbocharged inline-six with an electrically assisted supercharger, delivering a remarkable sound and strong performance.
Why is the GLC 53 AMG’s taxation so high?
The high taxation stems from CO2 emissions above 200 g/km, which triggers an €80,000 penalty in France.
What are the differences between the GLC’s gasoline and electric versions?
The gas-powered GLC and the electric GLC differ in powertrain, platform, interior, and they also face notably more favorable tax treatment for the electric model.
What tech features does the GLC 53 AMG offer?
It includes rear-wheel steering, adaptive suspension, a limited-slip rear differential, a large central display, a Drift mode, and highly customizable driving settings.
Is the GLC 53 AMG comfortable despite its performance?
Yes—it’s a strong balance of efficiency, agility, and comfort, thanks to its extensive onboard technology.
