A BMW official has confirmed that the range-extender engine to be offered as an option on the battery-powered i3 supermini will be a two-cylinder gasoline unit sourced from the brand's motorcycle division and not the upcoming, larger displacement 1.5-liter three-cylinder petrol engine developed for the Bavarian group's automobiles.
Speaking to Autonews during last week's Detroit Motor Show, Herbert Diess, BMW's head of Research and Development, said that the range-extender engine option will be offered when the new i3 goes on sale in the fourth quarter of 2013, but he avoided to say how much it will cost.
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