Nothing wrong with it at all.
Not a fan of the side vent, it's over done.
That looks much more production than the concept front end with that HUGE lower gaping grin. It too was over done and I think this render looks better.
I can see why some coupe fans may be disappointed as BMW had said that they would make the coupe look different than the sedan, and distinctively different.
Other than having 2 doors to make it different, it doesn't look like anything other than a 3 series sedan coupe version, albeit with the Msport front end.
So, maybe that's supposed to be the big difference, the coupe will have the Msport front end as standard so as to make it more different than the standard 3 sedan.
The "gran coupe" otoh has a much more different look even inside compared to the F30 sedan. But that price premium is ridiculous for basically the same mechanicals.