IMO I think the rear is fine. It's certainly not like the concept in style but by all means not ugly or plain.

However, the front of the car blows. Crossfires look great from the side and rear and look extremely boring from the front.

I suppose the front is the hardest to keep like the concept, an example would be the RX-EVOLV concept (now the RX-8) THAT was a great looking car as well.