Tuesday, March 17, 2026

Six Cylinder Engines Make a Comeback

Mercedes-Benz has announced a significant shift in its engine offerings with the introduction of the GLC 53, featuring a turbocharged 3.0-litre inline-six engine. This move responds to previous critiques regarding the brand’s reliance on four-cylinder engines in some AMG models, particularly the GLC 43 and 63.

The GLC 53’s engine, designated as “M256M”, has been enhanced to produce 443 lb-ft (600 Newton-meters) of torque, marking an increase of 30 lb-ft (41 Nm) compared to the CLE 53 variant. An overboost function allows for a temporary torque increase to 472 lb-ft (640 Nm) for a duration of 10 seconds. This updated engine incorporates a revised cylinder head, a new intake camshaft, an advanced intercooler, and an enhanced intake system.

In terms of design, the GLC 53 will be available as a “Coupe,” characterised by its sloped roofline, appealing to consumers prioritising aesthetics over practicality. Both the traditional and Coupe variants can accelerate from 0 to 60 mph (96 km/h) in just 4.1 seconds, reaching a top speed of 167 mph (270 km/h) when equipped with the AMG Dynamic Plus Package. Additionally, a new exhaust system aims to provide a more robust auditory experience, featuring “special resonators.”

An advanced nine-speed torque-converter automatic transmission delivers power to all four wheels and can be complemented by an optional electronically limited-slip differential. Notably, this model introduces drift mode, a feature that enhances driving performance for enthusiasts, albeit at an additional cost.

Mercedes has not yet disclosed pricing, but the GLC 53 is expected to be positioned between the GLC 43, priced at $68,900, and the GLC 63, which starts at $88,100.

Test Your Understanding

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Vocabulary List:
6 words · tap to reveal
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AccentSpeed

Turbocharged/ˈtɜːr.boʊˌtʃɑːrdʒd/adjective
Equipped with a turbocharger to increase engine power.

Torque/tɔːrk/noun
A measure of the rotational force exerted by an engine.

Variant/ˈver.i.ənt/noun
A version of something that differs in some way from others.

Intercooler/ˈɪn.tərˌkuː.lər/noun
A component that cools the air between the turbocharger and the engine.

Aesthetics/esˈθɛtɪks/noun
The set of principles concerned with the nature and appreciation of beauty.

Differential/ˌdɪf.əˈren.ʃəl/noun
A gear that allows for differences in wheel rotation especially during turns.

How much do you know?

Which engine is featured in the Mercedes-Benz GLC 53?
Four-cylinder
Inline-six
V8
V6
What is the torque output of the GLC 53 engine?
600 lb-ft
443 lb-ft
472 lb-ft
500 lb-ft
What is the top speed of the GLC 53 when equipped with the AMG Dynamic Plus Package?
160 mph
167 mph
175 mph
180 mph
Which feature enhances driving performance for enthusiasts in the GLC 53?
Eco mode
Drift mode
Comfort mode
City mode
What is the acceleration time from 0 to 60 mph for the GLC 53?
3.9 seconds
4.1 seconds
4.5 seconds
5.0 seconds
Which models were criticized for their reliance on four-cylinder engines?
GLC 53 and 63
GLC 53 and Coupe
GLC 43 and 63
GLC 43 and Coupe
The GLC 53 features a V8 engine.
The GLC 53
The GLC 53 can temporarily boost torque to 600 lb-ft.
The GLC 53 comes standard with drift mode.
The GLC 53 pricing is known to be lower than the GLC 63.
The GLC 53 introduces an electronically limited-slip differential.
The GLC 53 reaches a top speed of mph when equipped with the AMG Dynamic Plus Package.
The GLC 53 is expected to be priced between $68,900 and $.
The GLC 43 model was criticized for relying on engines.
The overboost function in the GLC 53 allows torque to increase to lb-ft for 10 seconds.
This question is required

Test Your Understanding

Start Quiz
Vocabulary List:
6 words · tap to reveal
OFF
AccentSpeed
Turbocharged/ˈtɜːr.boʊˌtʃɑːrdʒd/adjective
Equipped with a turbocharger to increase engine power.
Torque/tɔːrk/noun
A measure of the rotational force exerted by an engine.
Variant/ˈver.i.ənt/noun
A version of something that differs in some way from others.
Intercooler/ˈɪn.tərˌkuː.lər/noun
A component that cools the air between the turbocharger and the engine.
Aesthetics/esˈθɛtɪks/noun
The set of principles concerned with the nature and appreciation of beauty.
Differential/ˌdɪf.əˈren.ʃəl/noun
A gear that allows for differences in wheel rotation especially during turns.

How much do you know?

Which engine is featured in the Mercedes-Benz GLC 53?
Four-cylinder
Inline-six
V8
V6
What is the torque output of the GLC 53 engine?
600 lb-ft
443 lb-ft
472 lb-ft
500 lb-ft
What is the top speed of the GLC 53 when equipped with the AMG Dynamic Plus Package?
160 mph
167 mph
175 mph
180 mph
Which feature enhances driving performance for enthusiasts in the GLC 53?
Eco mode
Drift mode
Comfort mode
City mode
What is the acceleration time from 0 to 60 mph for the GLC 53?
3.9 seconds
4.1 seconds
4.5 seconds
5.0 seconds
Which models were criticized for their reliance on four-cylinder engines?
GLC 53 and 63
GLC 53 and Coupe
GLC 43 and 63
GLC 43 and Coupe
The GLC 53 features a V8 engine.
The GLC 53
The GLC 53 can temporarily boost torque to 600 lb-ft.
The GLC 53 comes standard with drift mode.
The GLC 53 pricing is known to be lower than the GLC 63.
The GLC 53 introduces an electronically limited-slip differential.
The GLC 53 reaches a top speed of mph when equipped with the AMG Dynamic Plus Package.
The GLC 53 is expected to be priced between $68,900 and $.
The GLC 43 model was criticized for relying on engines.
The overboost function in the GLC 53 allows torque to increase to lb-ft for 10 seconds.
This question is required

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