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General Motors says the new Vauxhall/Opel Insignia, will make its global debut at London Motor Show, will be the basis for the new Saturn Aura.

The Aura will have a completely different skin and interior, but sub-systems, suspensions and powertrains will be shared, though we are not sure just how many of the six available gas and diesel engines in the Euro-only Opel will make their way Stateside.

GM also shot down the possibility of a coupe version of the Insignia making production.