Ford has added the one-litre, three cylinder, EcoBoost petrol engine option to its European C-Max (five seats) and Grand C-Max (seven seat) MPV model line, claiming the powertrain delivers class-leading fuel efficiency and CO2 emissions.

Both 100 PS and 125 PS versions of the “international engine of the year” will be offered.

Both versions achieve 55.4mpg and 117g/km CO2 in the C-Max and 54.3mpg and 119g in the Grand.

Sales chief Roelant de Waard said: “It’s already very popular on the new Focus so it makes a lot of sense to offer it in the C-Max and Grand C-Max as soon as possible.”

The three-cylinder 1.0-litre EcoBoost petrol engine uses turbocharging, direct fuel injection and variable valve timing on both intake and exhaust to deliver the power of a larger engine with the fuel efficiency of a downsized unit.

The new engine makes up around 25% of total orders for the Focus in which it was introduced. It will also go into the B-Max on sale later this year.

Ford forecast that by 2015 more than half of the vehicles it produces for Europe will be powered by EcoBoost engines – which are also available in 1.6 and 2.0-litre versions.

A new optional Titanium X trim level adds panoramic roof, xenon headlamps with jet wash, partial leather seats, heated front seats, power driver seat, new 17 inch alloy wheels and, for the five-seater, a ‘comfort rear seat system’ configurable to provide additional rear space and leg room.

Sync with emergency assistance will be available along with optional advanced driver assistance technologies active city stop, lane keeping aid, lane departure warning, auto high beam, driver alert and traffic sign recognition.

A blind spot information system (BLIS) and power tailgate are also now optional.

European models are made at Valencia in Spain.