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Modifications include a new front bumper, headlamps, LED rear lights and a new rear bumper. Previous spy pictures showed only the front bumper in disguise but these snapped shots show the true changes. Both models will exhibit these changes when unveiled in September.
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Since BMW has a habit of escorting a new product launch or update with a new engine or an upgraded one, our curiosity is running at full speed trying to figure out which new powerplant will accompany these cars. That information might leak out ahead of the show. If not then the wait will be a long one.