wiki -
'All taxicabs in Singapore have to pay for the much higher road tax
applied to diesel-powered passenger cars, which was intended to
deter people from using diesel-powered vehicles for private use.
This road tax bill is foot by the taxi company (except for STTA
taxis), and can be as high as S$6,300 annually. However, some
operators are trialling vehicles powered by natural gas.'
'Most of the taxis in Hong Kong run on LPG (liquified petroleum
gas) for protection of the environment. In August 2000 a one-off
cash grant was paid to taxi owners who replaced their diesel taxi
with an LPG one. By the end of 2003, over 99.8% of the taxi fleet
in Hong Kong ran on LPG. Since August 2001, all newly purchased
taxis run on LPG.'
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LTA is such a letdown.
So much for the eagerness to Euro 4 conversion. Then of course they
approved Euro4 cab, resulting in even higher fare for
consumers.