Zeno, beautiful car, good luck with it.
Let me tell you about black, I'll never buy one again. I have owned a BMW 335xi (twin turbo one) for one year now, in jet black. No matter how careful you are, there will be swirl marks. This car has not been to an automatic carwash yet. I have washed it myself, using a two bucket method, only microfiber towels/applicator pads, changing towels/water after washing wheels first, and so on. Still swirl marks!!!! But the car in black looks fantastic after being washed and waxed.
Oh, and and if you are thinking of getting the clear bra for it, all the chips I have so far are in places where the bra would not protect my car. It's painful.
So far I have been using the Zaino products: http://www.zainostore.com/ - not sure if you can get them in Europe, but I'm sure you can find an equivalent product there. It's a synthetic seal and last a very long time. I do full application two to three time per year along with claying, and keep up with one seal application every other wash. Looks great and makes washing the car a breeze.
Enjoy the car, its a beauty!