Parkers overall rating: 3.4 out of 5 3.4

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

Petrol engines 7.2 - 9.8 mpp
Diesel engines 8.6 - 11.2 mpp
Plug-in hybrid petrol engines 35.5 - 50.3 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 33.6 - 46.0 mpg
Diesel engines 42.4 - 55.3 mpg
Plug-in hybrid petrol engines 166.2 - 235.4 mpg
  • Diesels are the most economical
  • The 225hp petrol is efficient for performance offered
  • Real-world consumption lags behind claimed figures

We expect the DS 7 Crossback to have similar running costs to its Peugeot 3008 cousin, even though it's pitched in a much higher area of the market. DS Automobiles is claiming great things for the car's residual values, although CAP predicts that a three-year-old Ultra Prestige HDi 180 with 60,000 miles on the clock will be worth £16,000, retaining 35.6% of its value.

Claimed fuel economy varies from around 48mpg to just over 68mpg – reasonably strong figures for the class of car, meaning low fuel bills.

The BlueHDi 130 returns a claimed 68mpg, while the 180hp version is capable of 57mpg according to DS.

The 1.5-litre BlueHDi diesel emits less than 110g/km of CO2 emissions, making it the cleanest engine in the DS 7 Crossback range.

Even the more powerful BlueHDi 180 emits 128g/km, which is cleaner than the equivalent Audi Q5 TDI at 138g/km.

The petrol isn't bad, either, with a CO2 emissions figure of 134g/km for a 25% BIK band – an impressive effort considering the size of the DS 7 Crossback.

E-Tense running costs

The E-Tense achieves 128.4mpg and 33g/km CO2 on the new WLTP test cycle, though you’ll need to keep the battery charged to achieve anything close to those figures – a full battery charge takes two hours from a 6.6kW charger, or eight hours using a three-pin domestic socket.

It’s likely that the DS 7 E-Tense can both greatly improve on it’s already impressive economy figures and fall depressingly short. Do shorter trips and religiously keep the battery charged and there’s little need to burn any fuel at all – the DS can cover up to 31 miles on pure electric power, and achieve speeds of up to 83mph silently too (though don’t expect it to cover 31 miles at a steady 83mph!).

However, when the battery runs out of charge, the DS 7 has to carry around an extra 300kg of hybrid powertrain, which makes the petrol engine work so much harder, and because the E-Tense’s 42-litre fuel tank is 20 litres smaller than other DS 7’s (to make room for the battery) you’ll need to fill it up more regularly than the purely diesel or petrol models. So be sure to consider how long your typical drives are, and how often you’ll realistically charge the battery.

Reliability

  • Parent company PSA has a patchy reliability record
  • The breakdown and warranty figures don't justify this
  • Solidity and quality feel good, if not quite up with Audi

Peugeot and Citroen have a poor reputation for reliability, which is largely unjustified these days. New tech like the LED instrumentation and adaptive cruise control may have some teething troubles, but DS dealers should iron out these problems early on. PSA says that the dealer experience for these cars is much better than it was in the past.

DS Automobiles has produced a quality feel for its interior, with extensive use of luxurious materials, to provide a premium experience. Whether that will result in Audi-levels of longevity remains to be seen.

Ongoing running costs

Road tax (12 months) £150 - £475
Insurance group 19 - 39
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