Queen did not indicate where the engines would be made or predict their fuel economy.
The 2008 Cobalt powered by a 2.2-liter engine gets 33 mpg highway and 24 city. The smallest GM model in the States is the Korean-built Chevrolet Aveo that is powered by a 1.6-liter. The Saturn Astra is powered by a 1.8-liter engine.
Turbochargers could cost GM $200 to $450 per vehicle depending on the system’s sophistication, said Jim Hall, director of industry analysis at 2953 Analytics in suburban Detroit.