Can share what you mean by "bad fuelling" ? Do you put external stuff like fuel-additives/pills ?
Please PM me if not convenient to share in public. Thanks

As I understand, the engine can officially use our local M'sia RON 95/97/98.

Mine no rattle interior. Complete quiet, solve the door-rubber ngek-ngek sound also.

EXCEPT, the driver seat, there is a latch to pull, which will give lumbar support, sometimes got ngek-ngek sound 
Noted. To me, if I want higher performance, I'll go for removable piggy, while still can maintain 5 years warranty.
Understand, you may edit your post if you want 
As usual, German over-engineered. e.g. the door-panel ... got 3x screws and forgot 5-6x notches 

the drive train... it's same 1.8 turbo engine & 7 speed DSG as the Passat
you're paying 50k more just for the different body

might as well wait for it to come with 2.0 turbo & 6 speed DSG like the previous CC
better engine & gearbox, or get an old cc which is same drive train as golf gti

piggyback won't void any warranty

Up down, left, right haha. I just love watching it work. Same on the c-class, saw my neighbour's hehe. I think it's an auto test for the light bending system, no harm. Just love watching it move ;p
Well, if you ask me, I'm in my early 20's and I don't want an uncle looking car. I always wanted a car with bi-xenons and DRL over the boring usual yellow headlamps. (yes I know you can modify Jetta but I don't wanna do that)

Although they both have the same engine, torque power output blablabla, the jetta is bigger, heavier and less aerodynamic. (plus to me it looks a bit like persona lol) So don't you think the golf will be a better choice if you're looking for speed and handling? Just like the roc and golf. Same engine power etcetcetc but the roc handles so much better if you corner on high speeds (test drive for yourself) This is due to the more aerodynamic shape of the roc thus producing lesser drag.

As for cabin and boot size, for now it's only my girlfriend and I. So for 2 people going on short trips, the golf is more than enough. Of course if you're starting a family soon or already married with kids I'd suggest something like a camry with more space for family.

Ultimately, it all boils down to your PERSONAL preference. I've admired the golf since the mk5 came out, and since it's usually just the 2 of us; I'm happy with my choice!