BMW 330d :)
Just saw this and it must be in with a shot! Some power increase over the standard mc12 as well!
http://www.dpccars.com/car-videos-08/06-12-08page-Maserati-MC12-Corsa.htm
http://www.dpccars.com/car-videos-08/06-12-08page-Maserati-MC12-Corsa.htm