there is more use for '2' and '1' in an auto car.....
in cases of inabilities of the brakes, u can use them....
they act like engine brakes.... example, if u are driving at 120,
and u seriously need to slow down the speed, change to 2 and the
speed will eventually drop to around 60-80.... then change to 1, to
bring the speed even lower.....
note: will eat alot of petrol.... hahaha
i change to 2 sometimes when i am driving very fast, then need to
turn, i will change to 2, while braking, then change back to
D......
ps: i heard this will cause problems to the gearbox in time to
come... hahaha
who say u can play with auto cars... hahaha