Skip advert
Advertisement

New Mercedes GLC 300 Coupe 2020 review

We try the refreshed Mercedes GLC Coupe in mild-hybrid 300 petrol guise in the UK

Find your Mercedes GLC
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

Mercedes has added some welcome new technology to the GLC’s cabin, bringing things up to date alongside key rivals such as the BMW X4. The Merc remains a comfortable SUV with a well made, high-quality interior, too. But the GLC 300 in Coupé format is not the sweet spot in the updated range. At more than £50,000 in Premium trim, it’s a lot of money for a four-cylinder SUV of this size.

Advertisement - Article continues below

The changing landscape of Europe’s premium car market is captured quite well by the Mercedes GLC. It’s an SUV, but it’s also offered as the sportier-looking Coupé for buyers wanting to stand out. Of course, the reality is that it’s a less practical model for more money, witha 500-litre boot that’s 80 litres smaller. 

For 2020, the GLC has been refreshed with a minor exterior redesign, while inside there’s a new 10.25-inch floating display sitting in the middle of the dashboard. 

Best SUVs to buy 2020

The new MBUX infotainment system looks great, but we’ve found it lacking in logical operation in other models. For those who like using touchscreen inputs, that’s now available in the GLC. Wireless smartphone charging becomes an option, too. 

Digital dials are also available, with a bright and crisp 12.3-inch panel replacing the previous car’s analogue set-up. Sitting in front of it is a brand-new multifunction steering wheel. Five years into its life, the GLC still feels like a high-quality product, and these updates bring some much-needed technology to the mix.

The GLC 300 features a 254bhp 2.0-litre turbo petrol engine joined by a 48-volt belt starter generator system, which enables engine cut-off for emissions-free coasting.

Performance is good, and on the motorway the GLC is refined, with seamless and near-undetectable engine cut-off, courtesy of the mild-hybrid system. It’s not an engaging engine, though, and does little to excite. 

Based on worst-case-scenario WLTP figures, it’s not economical, either. For many, diesel will remain a better choice in the GLC, especially given that the 300 d is similarly priced, offers better performance and is cheaper. Company car buyers can really cut costs with the new 300 e plug-in, too.

Best hybrid SUVs to buy 2020

The GLC Coupé’s main adversary is the BMW X4, which is more enjoyable to drive than the Mercedes. It’s also a more modern product with better engines, and even the feisty, six-cylinder M40i model isn’t too far out of reach compared with the £50,000 that Mercedes charges for the GLC 300 in AMG Line Premium driven here. Put simply, the BMW smacks of being better value. 

Skip advert
Advertisement

New & used car deals

Mercedes GLC Coupe

Mercedes GLC Coupe

RRP £68,220Used from £25,799
Mercedes GLC

Mercedes GLC

RRP £54,450Used from £32,700
Mercedes GLE

Mercedes GLE

RRP £61,475Used from £27,995
Mercedes GLB

Mercedes GLB

RRP £38,340Used from £19,295
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Geely Galaxy Battleship 700 is an AI-powered behemoth aiming to sink the Land Rover Defender
New Geely Galaxy Battleship - front static

New Geely Galaxy Battleship 700 is an AI-powered behemoth aiming to sink the Land Rover Defender

Auto Express has confirmed the hulking hybrid 4x4 is coming to the UK
News
25 Mar 2026
Car Deal of the Day: hot Volkswagen Golf R Estate offers pace and space for £301 a month
VW Golf R Estate - front cornering

Car Deal of the Day: hot Volkswagen Golf R Estate offers pace and space for £301 a month

High performance doesn’t normally come this cheap – the Volkswagen Golf R Estate is our Deal of the Day for 25 March.
News
25 Mar 2026
Surprise Cupra Tavascan update brings bigger screens and possibly a lower price
2026 Cupra Tavascan - front 3/4

Surprise Cupra Tavascan update brings bigger screens and possibly a lower price

The new entry-level Tavascan gets a 58kWh battery capable of around 270 miles on a single charge
News
26 Mar 2026