This car supposedly will be made to compete with the CLS, upcoming Porsche Panamera, and Aston Martin Rapide.

Might be called an "8 Series", with an 850i as the first model, then a V-12, and ofcourse an M8!!
Bimmer should put a twin-turbo on that V-10, or on their V-12 ... with their suspension and chassis setup, and an engine like that ... it would be a remarkably fast and crazy car for sure!
The concept car already has a reworked version of the current M5/M6 engine, but with two more cylinders, so basically it's a 6.0 liter 600+ Horspower M V-12 car!! Must be pretty fast ... they should twin-turbo this car for sure.

Links:

http://www.leftlanenews.com/bmw-cs-concept.html

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

http://images.leftlanenews.com/conte...cs-concept.jpg

hmmmmmmm Maybe if BMW puts the V12 in there MB will finally bust out the CLS 65 -M killer

That front view is pretty damned ugly.
Side view is tolerable at best.
interior is obviously concept
cluster looks like crap
this car will be another flop like the 6-series, even worst