Search:

Looks like almost 100% city driving is my guess.

After how many km?

I forget if the Micra beeps each time you start the car if that last bar is blinking. I think it might.

Another question:

When do you decide to fill up? Maybe the gauge on the Micra is more pessimistic than the Yaris. You might be putting in a smaller amount each time and so filling up more...