City or vios can get another 50km on top of the 400km for a full tank? i'm not too sure myself. But i know waja is not fuel efficient..quite thirsty actually..i've got one in my house...FC same like my m3. haha

For me the FC is just ok, believe if u choose civic the FC also not going better than M3, our problem is we keep comparing it with our previous car. Mine is waja while urs is vios. Vios is different class than M3, fyi I still keep my viva 1.0 for 100% city driving. The FC is just too efficient 50 ringgit for 1 week travel to work from sg buloh to pudu, if I use M3 the petrol with same amount will only gonna last for 2-3 day. But viva handling like sampan so I still drive my M3 and take longer route rather than dive in the jam area. Mazda3 more efficient during cruising. 
I didn't notice that, that mean the engine over rev to 6.7k only shift gear. But I notice the flappy pedal is not really responsive. Now I only use D mode and only use flappy pedal to downshift during cornering.

Nothing fancy from the exterior point of view. More of accessories to make life easier and more convenient.

Tray for the center armrest area, so that I can put some stuff such as keys/remote controls in there.

Mat for the cargo floor so if anything spills in there, it'll be easier to clean.

Cargo nets that hooks in the boot to tie things down, as well as another net pouch thing for the back to slot in stuff, that way I won't be driving with things moving around in the boot.

Try to get from the Service Centre. They should have it.
If not go to any car paint shop and they can mix it up for u. Juz need the colour code that is found at the sill of the driver's door and maybe a sample to compare against. But they may not do like a 100ml for u. Probably like 500ml and it'll cost u like RM30+.

I am pretty sure you should be able to buy them online.

They come in those little nail polish like bottles, so it is easy to use.

It all depends on how deep the scratch is. If it is not deep, it can be minimized by using detailing products such as polish or compound. If it is deep till the primer layer is exposed then u will need to use touch up paint. Got picture to show?
If u wan to spray the whole panel, it should cost u abt Rm100+. If u juz spray that scratch, the effect may not be nice. May be visible, depending on the workmanship.