Any wheel mfrs done/found max/ideal wheel & tire measurements?

[No Usury]

Not only looking for max tire (1) width, and (2) height, but also ideal offset/backspace.

Ideal meaning fit and max height/width with no rubbing at stock suspension height.

Anyone know of any wheel mfrs who have done this work?

 

[MatthewAMEL]

Cadillac Wheel and Tire Fitment Guides

Make sure it fits. See our detailed guide with square & staggered fitments for your Cadillac. View photos of street & track setups

apexwheels.com

You can also get a custom set from many manufacturers...BC Forged and Signature come to mind.

Your question is a little vague, BTW. 'Ideal' for what use? Street only? Track? Winter driving?