Seems that BMW can easily find some ways to comply with the MPG requirement... such as changing the hp/torque curve, or creating a more defined "Sport" vs "Regular" mode like the one found on the M5. Or they can seriously detune the motors to leave the dirty work to chip tuners
. There are lots of things one can do to manipulate MPG especially on a turbo car!
Lets hope our gov't does not implement a tax based on the engine size.. These laws are crazy in Europe & Asia. I think this would be catastrophic!