Critique my silo page setup

I'm currently working on siloing my site and want to make sure what I'm doing is correct.

This is my current setup I'll use cars to portray my pages.

Main kw: Cars (homepage article)

Top level silos: Ferrari | Ford | BMW (navigation bar)

Second level silo: Ferrari 200r | ferrari 500c | ferrari s series (these are in the sidebar when you click into the Ferrari silo page)

Third level - supporting articles: best ferrari of all time | where to buy ferrari parts | are ferrari 200r's safe (these supporting articles will be at the top of the Ferrari the 200r sub silo page)

Have I left anything out?

The sidebar dynamically changes when depending on which main silo page you're on

Thanks!

Sounds about right to me. Just make sure your permalinks are like: Cars.com/ferrari/Ferrari-200r/best-ferrari-of-all-time/ that will ensure you smooth sailing.

Seems right. Here is a diagram I found online a while back when I was looking into it -

Perfect thanks! And my permalinks are exactly like that.
Cool diagram too ill be saving that one cheers