[Piwoslaw]

Originally Posted by jtbo

Monaco is actually trim level of my car, but I indeed live in Europe and in here it seems to be not so common material. It seems that our politics are still stuck into cardboard and paper.

Unfortunately our politicians last for much longer than the cardboard they print their mugs on

Try looking for coroplast at shops that make advertisements, Groar found a batch of circus signs on the roadside. I found a plastics company which offered it - it's not called "coroplast", so I had to look through the pictures in the catalog. It's usually made from PP, PE or PVC, in different colors, sometimes you can find something that's UV resistant.

Originally Posted by jtbo

I do have a welding machine and sheetmetal, so maybe using that, but it is lot of added weight then, I must research a bit if I can find something similar for coroplast.

Before you start any welding, not only get the shapes and sizes right, but also find out what your local laws are. The US is much more relaxed about what you do to your car, while in Europe you must have all sorts of homologations and certificates for pretty much everything. It's supposedly safer that way, but for many it's just a royal PITA.