To go along with additional 1 series advertising BMW has also begun to run spots for the //M3. This ad shows the inner workings of the high revving V8, specifically the combustion chamber.
The edifice for the spot began with a tour of BMW ‘s M facility in Munich, where the IdeaCity crew studied the inner workings of the M3 ‘s 4.0-liter V8. They had three complete engines shipped out to Belgium, where manifolds were cut, cylinders were shaved and lighting holes were drilled to mount special cameras, lenses and lights. After two weeks of intensive study and preparation, the team took another four, 20-hour days to film what happens inside the 420 hp mill during a single revolution. The completed spot was filmed at 10,000 frames-per-second and doesn ‘t utilize any form of computer-generated effects.(Thanks to Autoblog)