After its unveil at the 2013 Detroit Auto Show, the BMW Concept 4 Series Coupe was praised and admired by fans from around the world, and often labeled as one of the most beautiful BMW designs to date. Our own Chuck Vossler was already sold on the Concept 4 Series Coupe:

“Now, having seen the BMW 4 Series Coupe and talked to the designers in person, I am sold. Like really sold. Like figure out how to make room for it in the garage sold. Though it can be seen it in the pictures, in person the 4 Series really impresses with a seriously aggressive and low stance. Wheels seem to come all the way out of the fenders and there is not much wheel space left because it’s all used up for grip and what fender gap was left has been lowered for better handling. The wheelbase has been stretched, and to me, honestly it looks nothing like the F30 3 Series Sedan. The sedan looks conservative but the 4 series is so much more sleek.”

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The design of the Concept 4 Series Coupe Won Kyu Kang said the car came to life to merge the Technic with the Aesthetic.

Fast forward a few months later and BMW has unveiled the production version of the 4 Series Coupe. But this time around, the reviews are mixed and many are already pointing the less-impressive look when compared to the Concept version. Some believe the differences between the concept study and the “actual” car are significant, and the 4 Series Coupe lost some of its “WOW” factor.

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When unveiled, one of the features that stood out the most was the new headlight design with a direct transition to the kidneys, a feature that remains in the production model but with some changes.

Other changes come in the front apron where the concept featured a large central air intake more voluminous at its outer edges. As expected and hinted by BMW at that time, the production model carries a revised version of the air intake.

In the back, the changes are visible as well. The production model features classic BMW taillights, compared to the new lightning technology seen on the concept.

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The basic proportions and dimensions, however, are virtually identical, so no one seems to complain here.

As always, BMWBLOG has put together a visual comparison between the two variants, and we encourage you to tell us your thoughts in the comments section below.

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[Photos: Bimmertoday]