Blocky American-made BMW XM is brand's most powerful vehicle ever
BMW is planning something big for its South Carolina factory. The production XM will be built at BMW’s Spartanburg, S.C., factory. (BMW) The Concept XM is a preview of a super-style it will build at the plant starting next year. The BMW XM is powered by a 750 hp plug-in hybrid powertrain. (BMW) The blocky…