Ford has announced a new ultra-efficient version of the Focus 1.0-litre EcoBoost that will be the first petrol-powered family car in Europe to offer 99 g/km CO2 emissions.

The Ford Focus 1.0-litre EcoBoost ECOnetic has returned 67.5mpg in tests thanks to its specially calibrated 100PS version of the firm’s high-tech small capacity engine. To help it achieve these class-leading efficiency levels, the new model also incorporates other eco-technology, including ultra-low rolling resistance tyres, different aerodynamics under the car and revised gearing.

“Just a couple of years ago few would have thought that a medium-sized petrol car could break the 100g/km CO2 barrier,” said Barb Samardzich, European Product Development vice president. “Ford’s 1.0-litre EcoBoost engine has a habit of taking expectations of what a petrol engine can deliver and turning them upside down.”

The new model will extend the range of EcoBoost equipped Focus models to three; alongside the standard 100PS version, with 109g/km CO2 emissions, and the 125PS with 114g/km CO2. Introduced to the Fiesta, B-MAX, C-MAX and seven-seat Grand C-MAX last year, the 1.0-litre EcoBoost engine will be extended to the EcoSport SUV, Transit Connect and Transit Courier commercial vehicles; Tourneo Connect people mover; and later the all-new Mondeo.

Ford’s EcoBoost engines are able to deliver power, combined with efficiency, due to a low inertia turbocharger, split cooling system and direct fuel injection. ECOnetic variants also utilise other eco-technologies, including Auto-Start-Stop, Smart Regenerative Charging, Active Grille Shutter and Ford EcoMode to support a more economical and environmentally friendly driving style.

A zero emission Focus Electric will follow this autumn, along with the diesel Focus ECOnetic that promises emissions as low as 88g CO2.

"With the Focus 1.0-litre EcoBoost, Focus Electric and Focus ECOnetic, Ford offers customers an unrivalled power of choice of fuel-efficient family cars," said Sherif Marakby, medium car vehicle line director, Ford of Europe.