From £40,8207
Mild-hybrid power and refreshed looks give this SUV a new lease of life
James Attwood, digital editor
14 February 2020
Mercedes-Benz GLC 300 Coupe 4Matic 2020 UK

What is it?

Even in swoopy (or ‘mesmerising’, as Mercedes describes it) Coupé form and sporting AMG Line trim, the Mercedes-Benz GLC excels in refinement over dynamism, particularly thanks to its well-equipped, luxurious interior.

That should suit this latest 300 4Matic model, which features an on-trend mild hybrid powertrain with a 14bhp 48V belt-driven starter-generator to aid the 255bhp 2.0-litre four-cylinder turbo petrol engine. It promises a boost in fuel economy, the ability for engine-off coasting and a bit of extra propulsion under acceleration - and a small step into electrification for the GLC ahead of the 300e plug-in hybrid.

The reworked engine ties in with a general mid-life facelift for the Audi Q5 and BMW X3 rival, and while the exterior updates are subtle, particular attention has been paid to upgrading the on-board technology. The GLC has gained the latest version of Mercedes’ MBUX infotainment system and a number of new driver assistance features. 

But are those tweaks enough to make the GLC 300 a more compelling choice than before in the crowded premium family SUV market?


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What's it like?

As we’ve found with other versions of the refreshed GLC, the general updates ensure the interior remains a comfortable and relaxing place to spend time. The controls are well laid out, visibility is good (aided by the all-round cameras and sensors) and it all feels as premium as you’d expect from a Mercedes SUV of this size.

Notably, the large 10.3in touchscreen is clear and the MBUX operating system is intuitive and easy to use. That’s helped by your ability to control it via the touchscreen, steering wheel-mounted controls, a trackpad and surprisingly effective voice control.

Initial impressions of the mild-hybrid powertrain are good too. The two motors are well integrated and the electric unit does a good job of smoothing out the acceleration of the combustion engine at low speeds. On the motorway, the engine-off coasting is virtually seamless when it cuts in, enabling progress with a calm comfort that befits the interior.

The downside of this calm demeanour is that the powertrain isn’t particularly dynamic or engaging and on occasion not the most responsive. With the GLC’s relative heft, the shortage of torque compared with the 300d diesel can be felt.

And while the mild-hybridisation does aid fuel economy and emissions, the 300 still isn't particularly economical, with an official fuel economy starting from 29.4mpg on the WLTP cycle.

Should I buy one?

The refreshments made to the GLC continue to make it a compelling choice for those seeking a premium SUV of this size. Whether you should opt for this 300 version likely depends on how and where you’re planning to use it.

If your time is likely to be spent on longer journeys on motorways and A-roads (and depending on your view on buying a diesel), the similarly priced 300d offers better performance at a lower cost. And if you’re really seeking to make a step into the world of electrification, it would be worth looking at the plug-in hybrid 300e.

On top of that, we still question why you would pay a premium for the Coupé bodystyle over the more practical and spacious regular SUV.

Mercedes-Benz GLC 300 Coupé 4Matic specification

Where Surrey, UK Price £46,860  On sale Now Engine 4cyls, 1991cc, turbocharged, petrol Power 255bhp at 5800-6100rpm, plus 14bhp electric motor Torque 273lb ft at 1800-4000rpm Gearbox 9-spd automatic Kerb weight 1805kg Top speed 149mph 0-62mph 6.2sec Fuel economy 29.4-34.4mpg CO2 170g/km Rivals Audi Q5BMW X3

Join the debate


14 February 2020

I am waiting for a manufacturer to come up with a pull-out/push-in wrist rest just under the touch screen, so you can stabilize your left hand while operating the screen.  I can't afford a patent lawyer, so unfortunately I won't be monetizing my brilliant idea.  My other brilliant idea is a speedster SUV; I mean, stupid really sells these days, doesn't it?  So it follows that really stupid should fly out the window.

14 February 2020
275not599 wrote:

I am waiting for a manufacturer to come up with a pull-out/push-in wrist rest just under the touch screen, so you can stabilize your left hand while operating the screen.

Quite agree. A touchscreen is useless along a bumpy road. I suspect those in charge of a car's ergonomics never tested a car on a bumpy or twisty road?

14 February 2020

Well at present a full EV is just not practical in the U.K. and it will take years for a reliable and useable service to be set up. I just do not like Tesla but they do have the charging set up working properly. For the next 4/6 years we will have these Hybrids and they will help use in cities and urban areas. Should you petrol or diesel?....well the best and most efficient is a non hybrid diesel automatic as we have had for a good 15 years but life is different, diesel is hated and hybrids save the Planet...according to public misinformed opinion. I'm not sure a diesel hybrid is a good idea..a petrol hybrid is probably a better solution BUT my 3.5 V6 petrol SL gives 306bhp and returns a reliable 36 mpg or even more...and is low emissions, low tax and until we sort out EV useage, will stay with me for some time yet!

14 February 2020
ftm594 wrote:

Well at present a full EV is just not practical in the U.K. and it will take years for a reliable and useable service to be set up.

So how are all the the BEV's i3's, Konas, LEAFs, Model 3's etc being being driven at the moment if they're not practical?

14 February 2020

When you think before WLTP they used to claim these only put out a tax friendly 128g/km CO2. Pity it was only VW that got held up to account for 'creative' emission numbers. The now 170g/km is a bit more honest, Execs scared of doing prison time I guess.


14 February 2020

I cannot see anything either in the mild hybrid petrol motor or the whole concept that is compelling. They will sell on cheap lease deals. 

15 February 2020

Just google "GLC crabbing" before spending your money. 

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