Very interesting graphic. Where did you acquire it? It looks to me like some sort of 'photoshopped' image. As for my opinion, I am not too fond of it.
Headlights: Dislike ( too square ) I think the style of the 451 adds much character to the car, if this is a new model ie: forthree, or forfour it's ok.
Size: Dislike (assuming it's longer to add more passengers, I see the need).
Change for change's sake: Dislike ( Until the USA has millions of fortwo's on the road don't change the style).
Finally, I agree with John: ( Don't like it. Looks like a Yaris ).
We have all kinds of aftermarket options to customize the body of the smart fortwo. Keep changes to power train and interior.