Fuel Consumption on a Nissan Sylphy/Bluebird with CVT

Took a look at the official fuel consumption (FC) on this new car which stated 16km/l under Japan's 10-15 test mode which says:

.................Time-speed data points
The 10-15 mode cycle is currently used in Japan for emission certification and fuel economy for light duty vehicles. It is derived from the 10 mode cycle by adding another 15-mode segment of a maximum speed of 70 km/h. Emissions are expressed in g/km [Japanese Industrial Safety and Health Association, JISHA 899, 1983].
The entire cycle includes a sequence of a 15 minute warm-up at 60 km/h, idle test, 5 minute warm-up at 60 km/h, and one 15-mode segment, followed by three repetitions of 10-mode segments and one 15-mode segment. Emissions are measured over the last four...................
(http://www.dieselnet.com/standards/cycles/jp_10-15mode.html)

I guess with the assistance of the XTRONIC CVT the FC is only 16km/l, I would conclude that the Nissan MR20DE 2.0Litre engine is not that efficient after all... as compared to the Honda Civic 1.8 i-VTEC SOHC, normal 5AT gearbox which FC clocked approximately 20km/l (I read this in a 2007 Taiwan Magazine). The test was done by local Taiwanese on normal road condition (yes, not the 10-15 mode test). Hm.... it is much better than Sylphy's FC.

Again, the Honda City 1.5L i-DSI CVT 's FC is 26km/l.

Of course, the argument can be 1.5 is the smallest engine, thus it should be the most fuel efficient. And the Civic is 1.8L, thus it should be more fuel efficient than the 2.0L Civic. But.... I am looking at the CVT here.

Will need to find out the Civic 2.0 FC.