Mercedes GLC hybrid (2020-2022) range, MPG, CO2 & charging
The GLC hybrid is available in petrol or diesel form; both promise approaching 30 miles of electric range
|Model||Fuel economy||CO2 emissions||Wallbox charge time|
|GLC 300 e SUV||117-123mpg||52-54g/km||1hr 30mins (10-100%, 7.4kW)|
|GLC 300 e Coupe||109-118mpg||54-59g/km||1hr 30mins (10-100%, 7.4kW)|
|GLC 300 de SUV||149-157mpg||48-50g/km||1hr 30mins (10-100%, 7.4kW)|
|GLC 300 de Coupe||135-149mpg||51-55g/km||1hr 30mins (10-100%, 7.4kW)|
There are other Mercedes models available as either diesel or petrol plug-in hybrids – for example, the C-Class and E-Class saloons. However, a diesel-electric SUV is still a rare thing and none of the GLC's main rivals from BMW, Audi, Jaguar, Lexus or Volvo offer this option. Diesel works best for fuel economy on longer trips, as these engines are efficient at a constant speed on the motorway. The petrol version should be nearly as economical if you mainly use electric power, but it’s not as good for long-distance excursions.
Mercedes GLC hybrid SUV range, MPG & CO2 emissions
As you might expect, the diesel-electric GLC 300 de is the more efficient of the two, with claimed economy topping out at 157mpg in SUV form (versus 123mpg for the petrol) and CO2 emissions as low as 48g/km (versus 52g/km for the petrol). That last figure is important, as it means the GLC 300 de is in a lower Benefit-in-Kind (BiK) tax band than the GLC 300 e (14% versus 15%). That could be the clincher for many, although certain versions of the diesels are in the same bracket as the petrols due to slight changes in specification and wheel size. The electric range for both is under 30 miles – 25-27 for the diesel and 26-28 for the petrol.
However, the new second-generation GLC gets a larger 31.2kWh battery that boosts the petrol and diesel version's pure-electric driving range up to 80 miles. That's very impressive for a PHEV of any class, attracts an even lower BiK rating and increases the plug-in SUV's fuel economy to over 400mpg.
Mercedes says the GLC 300 hybrid's on-board charger allows for a top-up from a standard home wallbox in 90 minutes for both the petrol and diesel models. Charging from a domestic socket using a three-pin plug will be much slower – about five hours. That’s still more than quick enough for overnight charging, though.
In This Review
- 1VerdictThe GLC in both 300 e (petrol-electric) and 300 de (diesel-electric) form, and as a coupe or SUV, offers a different take on the luxury plug-in hybrid formula
- 2Range, MPG, CO2 & charging - currently readingThe GLC hybrid is available in petrol or diesel form; both promise approaching 30 miles of electric range
- 3Running costs & insuranceCompany-car tax rules mean the GLC plug-in is an attractive choice in petrol or diesel form, but private buyers can save, too
- 4Performance, engine & driveThe plug-in GLCs boast strong performance from their engines and electric motors, but ride and handling could be better
- 5Interior, dashboard & comfortA high-tech cabin with impressive infotainment means the GLC plug-in feels luxurious
- 6Boot space, seating & practicalityPlug-in versions of the GLC are less practical than the normal petrol and diesel options
- 7Reliability & safety ratingThe GLC scored highly in crash tests, but you have to pay extra to get the best assistance technology