Xbox vs Nintendo vs Playstation sponsorship in DTM?

Anyone know why Playstation pulled their support from Audi? Who no PS3 sponsorship. Weren't they sponsoring Audi for a few years?

And for 2011, looks like Nintendo joined the DTM.

Any chance we'll see Xbox 360 join in?

Or wouldn't it be nice if Xbox/PS/Nintendo each went with one of the 2012 DTM makes--BMW/MB/Audi? Game console rivalries also end up on the racetrack?

Because there's no game in which you can race the DTM. Unfortunately Codemasters went in a difference direction with their GRID series.

There's some DTM in GT5 but ony cars from a few years ago