Parkers overall rating: 2 out of 5 2.0

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

Reliable fuel consumption data for comparison purposes is not available for this model.

Fuel economy

A more stringent standard for fuel economy (WLTP) was introduced from September 2017, and this model was not required to undergo that test. Its fuel economy measured under the previous test system was 31 - 42 mpg. However these figures are less likely to be achievable in real world driving and so should never be compared to another car's mpg which was measured under the newer, more realistic WLTP system.

Warranty is for three years, but limited to 60,000 miles (most rivals offer unlimited mileage cover). New prices look attractive, but Impian loses a lot in depreciation. Fuel economy is good and insurance groups are average. Service intervals are not long enough - every 9000 miles.

Impian performs quite well on the eco front. With an average of 182 g/km CO2 across the model line-up, its emissions are quite low for a medium-sized saloon. It's worth noting that the line-up does not feature any diesel models, which typically produce less carbon dioxide than petrol engines with similar power outputs. The range is not particularly economical, averaging 38 mpg.

Protons have a reputation for mechanical strength, but the interior trim doesn't tend to be as strong. No reliability problems have been reported to us by owners.

Ongoing running costs

Road tax (12 months) £210 - £340
See tax rates for all versions
Insurance group 18 - 19
How much is it to insure?