Since 2016, Spain has been implementing the DGT (General Directorate of Traffic) environmental sticker, which consists of a label awarded to vehicles that meet certain pollutant emission standards.
These labels are used to identify vehicles that can circulate in low emission zones (ZBE) or in areas with traffic restrictions. In my case, having a recently registered diesel car, I have a class C sticker that allows me to enter all major cities for the time being, although not all zones, as this usually requires a 0 emissions sticker for electric vehicles.
But despite not having a non-polluting vehicle, what I can boast about is the possibility of a good shadow hunt, the environmental sticker on the dashboard of my car.
And even, by those rare optical phenomena, I can even have the shadow and also the reflection of the shadow at the same time by taking advantage of the reflection on the windscreen.
This is my entry to #SMASh contest organized by 
And happy and content with my shadows and reflections, I am going to see if I can enter Madrid without a fine for not driving in an environmentally forbidden zone for my vehicle.
Best regards.