General Motors new small petrol engine family will be based around a series of common components in a bid to establish a global engine network.
The new Ecotec petrol engine family, previously known under the codename SGE (small gasoline engine), will grow to embrace 11 variants ranging from 1.0- to 1.5-litre capacities in three and four cylinder configurations.
GM expects to produce around 2.5 million units annually at a network of five factories in North America, China, Hungary, Mexico and South Korea.
The engines will include naturally aspirated and turbocharged variants with power outputs ranging from 75 to 165bhp and torque outputs between 70 and 184lb ft.
The smallest displacement engine, the 1.0-litre triple will be offered in the Vauxhall Adam and Adam Rocks ranges, and is expected to be made available in the Corsa. GM says the engine develops as much power as the naturally aspirated 1.6-litre engine it replaces, but with a 20 per cent improvement in efficiency.
GM says the 148bhp 1.4-litre turbo is five per cent more efficient than the unit it replaces, but is claimed to be 50 per cent quieter than VW’s EA211 1.4-litre TSI engine and 25 per cent quieter than Ford’s 1.0-litre Ecoboost.