Priced from £20,120, the diesel starts at £1230 higher than the entry-level turbocharged 1.0-litre three-cylinder unit and is slightly costlier than its archrival, the entry-level Ford Focus diesel, which starts at £20,195.
The Civic diesel also adds a new trim to the UK range. Beneath the SE and SR trims currently offered with the petrol, the 1.6-litre i-DTEC diesel is available in an entry-level S trim.
The 1.6-litre engine is an upgraded version of the previous Civic's diesel unit. It features higher-strength pistons and low-friction cylinder bores, although the car’s power and torque remain the same at 118bhp and 221b ft. The differences add up to a fuel economy – under the new WLTP testing procedure – of 76.3mpg, with CO2 output of 99g/km.