Parkers overall rating: 3.5 out of 5 3.5

Miles per pound (mpp) Miles per pound (mpp)

Petrol engines 4.7 - 7.0 mpp
Diesel engines 6.8 - 9.0 mpp
Plug-in hybrid petrol engines 20.8 - 21.5 mpp
Low figures relate to the least economical version; high to the most economical. Based on WLTP combined fuel economy for versions of this car made since September 2017 only, and typical current fuel or electricity costs.
Based on "Weighted" mpg; figures depend on the proportion of miles driven in pure electric mode and may vary widely

Fuel economy

Petrol engines 22.1 - 32.8 mpg
Diesel engines 33.6 - 44.8 mpg
Plug-in hybrid petrol engines 97.4 - 100.9 mpg

For a sporty SUV, the Mercedes-Benz GLC Coupe’s running costs are low. At least, they are with the initial pair of engines, which is effectively the same unit in different states of tune.

Whether you opt for the GLC 220 d or 250 d, each has a claimed average fuel consumption of 56.5mpg with CO2 emissions of 131g/km on 18-inch wheels, rising to 141g/km when 20-inch rims are specified.

The forthcoming high-powered GLC 350 d and Mercedes-AMG GLC 43 will be more expensive to run but from 2018 the plug-in hybrid GLC 350 e will offer significantly reduced running costs.

More positively, residual values are expected to be in the region of 50 percent over three years and 30,000 miles.

Eventually a plug-in hybrid version of the Mercedes-Benz GLC Coupe will dip below the 100g/km of CO2 threshold but for now, the GLC 220 d and 250 d are equally low at 131g/km of CO2.

That three-pointed star badge and the word reliability are long-associated, so we’re not expecting any significant hiccups from the Mercedes-Benz GLC Coupe.

All of the mechanical components already see reliable service in a variety of other Mercedes models and the underpinnings are shared across the C-Class and GLC ranges.

Mercedes-Benz GLC Coupe (2020) boot badge

Ongoing running costs

Road tax (12 months) £150 - £475
See tax rates for all versions
Insurance group 29 - 49
How much is it to insure?