I did all before...

N - D ... Biasa lar.. Rev kaw kaw at 5,000rpm then straight shift to D and wheel spinning .. When going downhill or almost reach traffic light.. Shift to N to free the gear and let ur car move while is till has the force to push forward.. Save petrol i think...

D - R ... Not at high speed.. Around 30~40km/h .. The car will jerk like engine wants to die but it won't die..

D - P ... Around 40km/h + speed .. The car won't jerk and engine won't die also... IT will make a sound.. ZRrrrrrrrrrrrr... Dont' know how to describe..

Those who don't believe... Try it on ur own to believe me..
I not asking people to do this.. It's for people who thinks i talk crap only..

Erm.. For the D-R .. If you guyz dun dare to do that..

Try R-D .. Reverse at 20km/h speed without hitting the brake and straight push to D.. I'm sure some of u did this before.. It's the same like D-R.