Sorry for the delayed replies but I have other projects as well. I see most of the questions have been answered. Thanks!
The Citroen has a 1.4 fuel injected 55kw engine.
HypermilerAX, loving the comparison
I believe you have one of the ultimate budget hypermilers out there. I guess my choice to try hypermiling would be very similar.
So I did some testing recently. Here is what I noticed - covering to much of the front decreased the millage by as much as 8mpg. So removing most of the covers solved the problem and got my best mpg so far which is 4.8ltr/100km or just over 49mpg. I am guessing the car doesn't like warm air intake effect.
In the future I'm hoping to get narrower and less roll resistant tires, will try to improve the mirrors, remove the antenna.