I'm assuming you're asking about the year. Otherwise google image up "gulf GT40 or gulf porshe".

The 2011/2012 have the most modest/ visually balanced decals; perfect and pleasing to spectators and rider from every angle.
As for 2013 onwards, I have no idea why cdale decided to add an additional obnoxiously large "10" on the top tube which makes the bike look tacky and cheap.
~~No offense to your guys with newer models, it's the frameset itself that counts, this is just my opinion on aesthetics.~~

Not to mention that big "10" I mentioned above wraps around the top tube replacing the pin stripe which is forward pointing and would be visually appealing to the rider while riding.


Also, the top tube color is discontinuous.


Don't get me started on the 2014, cdale knew they did bad with the 2013 that's why they went back tot he 2011/2012 design.