Click the image above for a high-res gallery of the BMW CS Concept.

BMW will be joining the four-door "coupe" fray in 2010 when it launches its new flagship sedan, the Gran Turismo. Automotive News sat down with former M engineer, Gerhard Richter, who's been tasked with figuring out what design elements will be carried over from the CS Concept that debuted last year at the Shanghai auto show.

The Gran Turismo would slot in above the 7-series, being both longer and wider than BMW's largest sedan, and is likely to pack either a V8 or V12 powerplant. CSM Worldwide pegs production of around 15,000 units annually with a cost of around $150,000. That puts it in the same realm as Porsche's soon-to-be-released Panamera, Audi's rumored A7 and the Aston Martin Rapide, all of which will create a new class of high-priced, high-powered sedans that have yet to be proven in the marketplace.

[Source: Automotive News – Sub. Req.]

Related GalleryBMW Concept CS