Good morning Gentlemen
A couple of comments.
Bunny wrote: "
You may exceed the speed limit by 20km/h to overtake a slower vehicle outside built-up areas, except on motorways and dual carriageways.". NOT TRUE anyomore! The rules just changed and you're never allowed to exceed the speed limit. Very stupid new rule, as it will put drivers at risk while overtaking (if you follow the norms). This point is creating a lot of negative comments. But it seems there is no way back about this silly and dangerous new rule.
About the triangles, you need to carry two, or, again new norm, a compact V16 orange flash light. If you carry the V16 flashlight, no need to carry any triangles.
Ah! before i forget: I'm Spanish

so (I guess) my info is supposed to be true.

One last comment: anyone travelling in Spain from September and on, please do not hesitate to contact the Speedy Marmots! We'll be glad to give you our best advice, and, why not, meet and join you for one or two days !