rochan,
i was in ur situation before when making decission to buy the ACV .....
yes, no doubt that the price difference between the ACV30 and ACV31 is not that much for a used unit and u will get a few add-ons in the ACV30..... for me it's a good deal ......
i would like to share some of my reasons as listed below why i chose the ACV31 instead of the ACV30 :
1) i am upgrading from myvi (therefore, i am from a compact car to a mid sedan category) .... for me, from a 1300c.c to 2000 c.c is considered a huge upgrade.......
2) my requirement (apart from the standard features that the car has) are the leather seat/fog light and i managed to find that extras in my current "sayang"
3) no doubt, u will find more advanced features in the ACV30 like the MID/Digital a/cond/power seats/audio control on steering and etc... but i do dont think i'll play all these things all the time and therefore i still feel okay without these...
4) as for the FC, my 2.0 has been constantly reporting an at least 11 km/ltr in anytime for a 70 city/30 urban drive and i am very happy with this 7 yr old engine and i personally think the FC for 2.4 is about the same also(i beg the differ, u may refer to the thread for the FC infos on 2.0 and 2.4) .... no doubt the 2.4 could achieve better FC in hiway but i dont travel in hiway frequent (u must see ur daily driving pattern whether it is more in hiway or in city)
5) and last, the time when i bought my "sayang"......i had already planned in mind to get a used ACV40 in future due to it's latest design and the MOST IMPORTANTLY , it is the first model that has 5 forward gears since camry was launched in malaysia.... and i will be anjoying an another car upgrade again (from 2.0 to 2.4) if i change to the ACV40 in future...
the above are just my personnal thought only...........