Modeling a wheel for a car

Hello my friends,

I need to model a wheel, and I have a conceptual doubt:

Should I face it as an assembly (wheel rim + wheel tire ), or might it be better another approach, such as working with two SOLID BODIES inside same PART, without merging features  ????

I would like to star a debate with PROS & CONS on this topic.

THANK YOU !!!

SolidworksGeneral