Parkers overall rating: 4.2 out of 5 4.2

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

Petrol engines 6.2 - 9.1 mpp
Diesel engines 10.0 - 10.6 mpp
Plug-in hybrid petrol engines 40.2 - 43.1 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 28.8 - 42.8 mpg
Diesel engines 49.6 - 52.3 mpg
Plug-in hybrid petrol engines 188.3 - 201.8 mpg
  • Petrol and diesel models deliver good fuel economy
  • Plug-in hybrid model will travel 40+ miles on battery
  • All-electric EQA alternative likely to go on sale in 2021

Things kick off with a Renault-sourced 1.3-litre, four-cylinder petrol engine producing 163hp and 250Nm of torque, badged GLA 200. It’s claimed to be capable of returning up to 43.5mpg, with CO2 emissions of 129g/km. It’s the only engine to use a seven-speed automatic gearbox – all others use an eight-speed automatic.

GLA 250 models use a 2.0-litre petrol with 224hp and 350Nm of torque. These return up to 38.2mpg according to Mercedes' figures, producing 148g/km of CO2. The two diesel models both use a 2.0-litre, four-cylinder engine. The models badged 200 d produce 150hp and 320Nm of torque while returning up to a claimed 53.3mpg and 121g/km, while the 220 d has 190hp and 400Nm, returning 51.4mpg and 133g/km.

A plug-in hybrid (PHEV) model will join the range soon – it’s badged GLA 250 e and uses the same 1.3-litre engine as the GLA 200, paired up to an electric motor and battery pack. This delivers 221hp by trading 4Matic for an underfloor battery pack feeding the 75kW electric motor sandwiched between the engine and the eight-speed DCT.

Towards the end of 2020, we are going to see the fully electric EQA available with a choice of 150, 200 and 250kW power units and energy cells ranging from 60 to 110kWh for up to 250miles between charges.

Ongoing running costs

Road tax (12 months) £140 - £475
Insurance group 27 - 44
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