I don't agree that 12.20 can get you this far in
Singapore
If based on optimal conditions, no peak, no surcharges, no
stopping at traffic light, no waiting , no booking, non limo /
premier cab, etc
S$12.20 can only go max max 17km, the report anyhow hamtum
but in reality , sometimes
S$12.20 can't even go 2km 
(Calculation is Base on the lousiest veh, toyota crown 1st km
3.00, every subsequent 400m 22 cents till 10km , after 10km jump
22cents after 350m
1st km S$3.00 next 9km 22.5jump * .22 = S$4.95, next
7km 20jump x .22 = S$4.40)
Fully agreed with this.
Especially the part in red above 