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.
2017 Mk7 GTI
2015 f80 M3
2013 f30 335i M-sport
2012 e92 M3 ZCP