• Petrol-powered models are economical with low CO2 
• Mild-hybrid models are slightly more efficient
• But if you want the lowest running costs, buy the e-C4

What are the running costs?

If you’re after the most economical ICE C4, we’d actually point you in the direction of a used diesel model, which is capable of more than 65mpg quite easily on the motorway. But no C4 will be especially thirsty, with Citroen claiming more than 50mpg even for the entry-level petrol models.

The new mild-hybrid will be more efficient, with Citroen saying it can run for up to 50% of the time as an EV around a city at slow speeds and that it can reduce overall emissions by 20%. While we have no doubt it’s more frugal, the 48mpg we averaged on our gentle test route was some way off the 60mpg that Citroen claims. Given it costs £1,400 more than the standard petrol, we’re not sure it’s worth the extra cost.

134

CO2 emissions vary between 131 and 142g/km for the petrol PureTech 130, and 107-125g/km for the mild-hybrids.

If you want the lowest running costs possible, and are able to charge at home with cheaper energy rates, we’d point you in the direction of the electric e-C4.

Servicing and maintenance

Citroen offers a servicing package that you pay for up front for up to three years or 35,000 miles. It also offers fixed price servicing at the cost of £249 for a first service, £289 for subsequent services and £359 for a major service, required every four years.

Reliability

• Tried and tested mechanical components
• Citroen reliability is above industry average
• C4 has yet to prove itself

Sharing much of its technology with a wide number of other Citroens as well as DSs, Peugeots, Vauxhalls, the fundamentals of the C4 are tried and tested product, despite being new to the market. This is a good thing, as parent company PSA’s current model range is much more reliable than those of their predecessors.

However, we will monitor the situation as the C4 ages to check whether recalls or other issues develop.