I bet the people complaining about the 4 series name are the same people who were complaining about the N20 before BMW released it. In fact, it ends up being a great engine and BMW is going to sell exactly one buttload of them.
4 series is a good marketing move. It positions the coupe slightly above the sedan in terms of prestige, which, I imagine, is what BMW has carefully determined is important for 3 series coupe buyers. Plus, who cares what it's called - in all probability it will be a fantastic car.
I do think that render looks more like an A5 than a 6er. But that's like saying the girl looks more like Brooklyn Decker than Giselle Bundchen. Hard to go wrong.
2013 535i xDrive M-Sport | 2005 545i Sport (Retired and missed) | 2001 X5 3.0 Sport (Retired)