The M7 isn’t a real thing and the Alpina B7 is as close as you’re going to get. It too features Efficient Dynamics, and considering it’s not a sports car, we can see that working a little bit better here. It still has the twin-turbo V8 of the M5 and M6, just stuffed in a heavier, larger car. Both of those things mean less efficient. Then again, there’re few things more fun than making large, heavy things go much faster than they should. Doing it in the lap of luxury is just showing off.
I don’t really mean to hate on Efficient Dynamics, I’m just not on board with using it to hawk sports cars and luxury barges. It does have a place however.
In fact, there are (at least) two really good reasons not to ignore it completely.