Looking for advices - first MOC

[P1l0t3]

As Roland said, use submodels instead of groups, and steps. The main model should be a .mpd file.
About color, black for parts, rubber black for tyres and other rubber part
If you want to built it really, grey colors used since 2004 are 71 light bluish grey and 72 dark bluish grey. Windscreen in trans-black.
An instruction of a MOC of this F1 is freely downloadable at Rebrickable (not the original design by NKUBATE for Renault but close). An exemple for using steps.

Thanks for the colour info. As stated, that is my first try.
The black used is from the tires, so yeah, newbie mistake here, I used it everywhere after. Silly me
As for the submodels, this is me using LCAD on the surface and not diving into its functionnalities.
I will have to explore that to see how it can ease and facilitate any other built I would like to start.

I did find and use the MOC you are refering to, but only to confirm some piece arrangements. Will try to learn from the best

But so far, you are not pointing any structural issues, so I'm glad.
I will look into buying the parts so I can do it live.
Thanks !