wow.. that was a very dangerous maneuver.
Bad news friend: We all know GLi has two trip calculators.
While I assume you will not be replying to this thread again, here is my part of the 'proof' that both the screenshots were actually of the same event:
//youtu.be/http://www.youtube.com/watch?v=g8bLTBo_SSY&feature=player_embedded
I knew this was going to happen sooner or later that people may object the screen shots. Contrary to my assumption, it didn't happen. But since I did make the video (to be on the safe side) I am posting it now.
What you need to do (to break this record -- in GLi) is to make a video of shifting the trip calculators so that we can see both of them.
GLi's engine is under powered. Therefore you need more gas to produce a performance equivalent to Honda City.
The funny thing is that you didn't realize that it is obviously not possible to have that average at a trip of almost 2000 kilometers. And you still wrote "me breaking the world record"
(paraphrase) 
Second problem is Gli is heavier. Even if it did have an engine as efficient, latest, and powerful as Honda City, it would still need more fuel to pull of a performance similar to Honda City (because City is lighter).