Ran a stock 2011 5.0 on the highway a few weekends ago with a fellow 135i owner.
2008 335i - 6spd - JB4 - 70/30 (E85/93)
2008 135i - AT - FBO (without meth) - JB4 - Pump 93
Stock 2011 5.0 with the new Coyote motor.
The outcome was as follows:
From a 40 roll, all 3 of us went. Myself and the 135i immediately put 2-3 cars on the 5.0 all the way until about 110 where we had a solid 4-5 cars on the 5.0 and then we all shut down. The 135i put 1 car on me before shutting down. This was done one more time to ensure consistency and the outcome was the same.
!Disclaimer! The above was conducted in Mexico.