How to remove scratches from windows and deflectors

Twizy deflectors and windows are made of polycarbonat. In particular, the front deflectors are "anti-scratch" treated, which does not mean that there is no scratch at all. Say there is less.

So how to remove scratches that inevitably occur? I tested an household product, the famous Miror.
No miracles, but some effect.
The proof in pictures and video >>

Letsgo: How to (re)install an elbow reinforcement

Here is the procedure to install an elbow reinforcement on the luggage carriers Trigo MultiGo or LetsGo
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