d drive all the way. use 3-2-1 when gearbox act dumb or slow to changing gear. engine roar sound is normal becos its generating more power once u step the gas pedal deeply.

car still newly run in. response will get better after ur first service.

the rest of question im not answering becos its up to own preference (no harm in anyway)

This post has been edited by ktek: Nov 9 2016, 01:06 PM