Mazda has confirmed the power and fuel economy details of the innovative Skyactiv-X engine that will be added to the line-up of the new fourth-generation Mazda 3 later this year.
The firm says the spark plug-controlled compression ignition petrol unit, which will be offered on both hatchback and saloon models, combines the performance of a petrol engine with the fuel economy of a diesel.
Mazda has now confirmed the unit will deliver 178bhp and 165lb ft of torque, while producing a fuel economy of up to 52.3mpg on the WLTP cycle, with CO2 emissions from 96g/km. The economy and CO2 figures depend on model, wheel size and transmission, with six-speed manual and automatic gearboxes available.
The powertrain will also include Mazda's M Hybrid system, a 24V mild-hybrid unit that can regain energy under braking.
Full UK pricing and specifications for the Skyactiv-X will be finalised in July; on-the road prices for the new hatchback start from £20,595.
The hatchback is initially on offer in the UK with a choice of five trim levels and two engines: a 120bhp 2.0-litre Skyactiv-G petrol featuring a 24V mild-hybrid system (starting from £20,595) and a 114bhp 1.8-litre Skyactiv-D diesel (starting at £22,395). All cars will be available with a manual or automatic transmission.
The new Mazda 3 introduces the firm's new Skyactiv Vehicle Architecture, an umbrella term for a number of new structures including seats that maintain the natural curve of the spine and a ring-structure bodyshell that increases rigidity, reduces transmission lag and improves noise, vibration and harshness levels.