Countless times I've found solutions on the net: I'll try to give back some, by sharing interesting things I'll come across.
A trip by the sea, Reloaded
Some months ago, I've tested the Yaris on a highway trip.
I had the chance to drive the same trip again.
The car now has 5000 km under its wheels, and consumption was 4.9 l/100km, a little better than last time.