I am driving an OPC 1.5L car. Recently government announced that
road tax will be cut 15% due to shift in emphasis towards ERP. My
yearly road tax used to be $74. Now after rebates I am not supposed
to pay anything. However, stated in LTA website, the yearly OPC is
subjected to minimum $50. Therefore my savings on road tax is only
$24 and I have to pay more ERPs at Orchard road, Singapore river
line and CTE. 
I am feeling so frustrated with LTA. Anyone
else share the same feeling as me? I am now considering to upgrade
to OPC 1.8L.
You already saved 17000.00 on the day you bought the car. And
you also save a few hundred yearly on road tax.