Across the board, the GLC Coupe’s CO2 emissions are comparable to its key rivals without being particularly outstanding. It is worth bearing in mind that the diesel engines are RDE2 compliant so won’t face the 4% diesel Benefit-in-Kind (BiK) tax surcharge for company car users until at least 2021, however. Claimed fuel economy doesn’t stand out compared to its rivals either.
Mercedes as a brand finished a disappointing 26 out of 31 manufacturers in the 2018 What Car? Reliability Survey. A three-year/unlimited-mileage warranty and three years of breakdown cover are standard, a similar package to that offered by most rivals.
There shouldn't be much need to attack the options list, which is handy as there’s only one item on it. LED headlights, an electric tailgate, heated faux leather seats with adjustable lumbar support, a reversing camera, climate control and even floor mats are standard on all GLC Coupés. AMG Line Premium models are worth considering for their digital dash, real leather seats and upgraded stereo, but models higher than this get very expensive so are harder to recommend.
All models also come with a collision prevention system that can automatically apply the brakes if it detects an impending impact with a vehicle in front. There’s also a tyre pressure-monitoring system to alert you early if you lose pressure in your tyres. All editions get seven airbags and a system that can detect if you’re getting drowsy on a long journeys, too.