The new, all-aluminum Ecotec direct-injection turbocharged petrol engine – which is a competitor for Ford's groundbreaking 1.0 EcoBoost installed in cars such as the Ford Focus and Fiesta – has been developed at Vauxhall/Opel’s International Technical Development Centre in Rüsselsheim, Germany.
The 12-valve engine will be offered in 89bhp and 113bhp power outputs. Both variants generate 122lb ft of torque at 1800rpm; almost 30 per cent more than Vauxhall's naturally aspirated 1.6-litre generates at the same rpm.
The lower-powered unit has stop-start fitted as standard and Vauxhall claims it can return 62mpg on the combined cycle, together with CO2 emissions of 99g/km.
Vauxhall set out to make the new powertrain the most refined in its segment by minimising balance, noise and vibration issues.
The Luton manufacturer explained that in bench testing at full throttle, the 1.0 unit emits lower noise levels across all engine speeds than similarly powerful petrol naturally aspirated engines of 1.6-litre displacement.