Raise the Volume. At this years Frankfurt IAA. BMW are planning to show a BMW M6 CSL Concept Car . This will give a very good indication of how BMW are planning their M (CSL) cars to stand out from the road going versions. Think of it as a modern interpretation of such as the BMW 3.5 CSL especially as it evolutionised over the years in which the BMW E9 coupe is in fact a precursor to today's current 6er Coupe range. Although the M6 uses as standard a Carbon Fibre roof. The plans for CSL cars are to use more weight reducing Carbon Fibre internally and externally. Lightweight glass and more enhanced aerodynamics with sufficient increased power the V10 is expected to go up to 550 PS. This will make the BMW M6 CSL become more hardcore and raw with earth shattering enhancements in speed, handling and will sound louder than the standard road cars - Think direct competition with the M6 CSL against the Porsche 997 GT3/RS and Aston Martin DBS. The M6 CSL Concept car will also showcase the introduction of the ZSG Gearbox. Visually the M6 will differ from it's standard car by offering new M cues as seen on the recent BMW M3 Concept Car. Causing much mystery is the appearance of a bulge on the bonnet of some M6 photographs, this will be supplemented with a pair of vents on each side . The front bumper changes to a unupturned shape similar to todays car and the upcoming BMW M3 with a curved bottom ledge - carbon Fibre aerodynamic spoilers sit below the brake cooling vents . On the side of the wings the M6 CSL will receive air vents similar to the M3 , The wheel design will be the same design as today's standard car but the spokes will be of Multi-Spoke design. at the rear there is a slightly larger vent underneath the licence plate and the standard mirrors are replaced by the same design as the new M3's aerodynamic mirrors. Whilst the BMW M3 and BMW M6 will more than definetely be greenlighted to get a CSL model. BMW are deciding on offering a CSL model of the Z4M Coupe and the upcoming BMW 1er Coupe. Whilst seen as a Concept Car. BMW will use the M6 CSL as a test bed for new lightweight technologies and will use reaction to determine production reality. With all this requiring serious legislation for the North American market. Currently as of now BMW do not intend to offer these models in the USA.