Parkers overall rating: 4 out of 5 4.0

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

Petrol engines 8.4 - 11.0 mpp
Diesel engines 10.9 - 12.7 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.

Fuel economy

Petrol engines 39.1 - 51.5 mpg
Diesel engines 54.1 - 62.7 mpg
  • No hybrids, but a frugal mix of petrol and diesel engines
  • Cheap servicing and reasonable insurance
  • Plenty of dealers dotted around the country

There aren’t any gas-guzzlers in the C3 Aircross range with all engines returning upwards of 50mpg according to the manufacturer. The most frugal of which is the 1.6-litre diesel BlueHDi 100hp, achieving a claimed 70.6mpg on average. This is closely followed by the more powerful BlueHDi 120hp at 68.9mpg.

Opt for a petrol motor and the base 82hp Puretech will give the best fuel economy, returning a claimed 55.4mpg. In manual form the Puretech 110hp manages 56.5mpg while the Puretech 130 comes in at 53.3mpg. Opt for the EAT6 automatic Puretech 110hp, however, and fuel economy dips to 50.4mpg – the lowest on offer from the Citroen C3 Aircross.

The C3 Aircross's carbon dioxide emissions are average for the class, lagging behind the Renault Captur. The most eco-friendly version (at least in terms of CO2 emissions) is the BlueHDi 100hp producing just 104g/km of CO2, with the BlueHDi 120hp following close behind on 107g/km of CO2.

The petrol engines, meanwhile, fall behind the diesel counterparts. Even the least-polluting Puretech 110hp manual engine emits 116g/km of CO2, with the Puretech 82hp derivative following closely behind. Next is the Puretech 130 engine on 119g/km of CO2, while the least-eco-friendly-engine honours go to the EAT6 automatic version of the 110hp Puretech producing 126g/km of CO2. 

  • Too soon for any real judgements on reliability
  • Heavily based on Citroen C3, with most parts tried-and-tested in other models
  • Cabin feels robust if not up to the standards of more premium models

Citroen reliability has in the past been patchy, yet with the C3 Aircross using mostly tried-and-tested components from the wider Peugeot-Citroen group, reliability should be on the up. Of the parts that we can comment on, the C3 Aircross’s cabin feels robust and reasonably industrial with only some cheap plastics and switches letting the side down.

The touchscreen infotainment system could be a concern for customers with higher-spec cars, thanks to Citroen deciding to have most of the heating and air-con controls incorporated into the system. If the touchscreen fails and the car is out of warranty, it could be a costly repair.

Ongoing running costs

Road tax (12 months) £150
Insurance group 6 - 20
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