Your car is so shiny. My old Vectra, that I miss, has not been so shiny in the last 10 years. Nor have other B-Vectras that I have seen. All suffer massively from rust.
I think that rims strike the attention mainyl because of the single screw and the even number of spokes, as most other aluminium rims have an odd number, like flowers in a nosegay. I don't know if the narrow rim design really fits to the Vectra though.
Good. That 45% ratio makes the tires look wider than they are. Don't go for wider tires, they only increase fuel consumption while not giving extra grip at all.