Talking about throwing away money.... getting a car is never an investment.. it is a yearly depreciating costs.
If really want to save... then just wait for the 6 bids.. dont get just change the brand loh.
The trick is never to pay beyond what u are paying for the CAT A in the same mth of the OPEN CAT that u are buying. Hence the top up u still wont lose. Unless one really fail maths.
Go check the past mths COE result and tell the agent exactly which COE u need shld u ever consider open cat.
http://www.aas.com.sg/coe/coe4.htm
My buddy's dad who owns a one yr old manual sunny is trading in for an auto sunny ( cost is $47k.) also cant get COE... but he's not worried since his existing car also so new. But if he can get...end result he can lower his mthly instalment.
Offtopic abit
According to my friend who is interested in sunny, her agent told her to wait till 2nd qtr/3rd qtr next yr for a brand new range of sunny if she dont want to risk losing value ( resale mkt

) in future when she sell competiting agst the new range.
There can never be a right time to buy.... COE may drop... may not drop.
New range will keep coming in...
maybe if u dont get by the 6th bid... u will be happy cos u can wait another 6 bid for the new range. I saw the pic... very very nice leh.