After going through complete 61 pages of this thread, I finally decided to go for a new city '09 MT instead of a new GLI '09 and I am completely happy with my decision so far; no regrets at all. It is already giving me 15 Km/lit within the city and that too in heavy rush. Drive is smooth, pick is awesome, interior is not that bad, only problem in the interior is its black color as dust looks more prominent on black.
I am getting desperate to experience the pleasure of its drive on motorway.
Finally, thank you everyone for contributing into this valuable thread and helping a prospective and confused buyer like me to take a wise decision.
Special Thanks to @ Shaheel @ AbdulKarim for their logical and valuable feedback.