I like this idea of comparing concepts. Does it mean anything, really?
The 4 series production car will not look like the concept, and neither will the production version of this car. So, compare away!
FWIW, I don't like this design either, but it's unfair to compare them as we have seen A LOT more views and details of the 4 series concept.
"... but really, you just gotta ... you just gotta turn it all off, boys! You gotta turn it all off and you gotta wreck some tires! That's what M cars are all about, isn't it?"
-Chris Harris on the f80 M3