These measurements I know works well on the fronts:
265/30 19 ET23
https://www.willtheyfit.com/index.ph...=10&offset2=23
And I guess this would work at the rear? It's just a wider tyre on the OEM size wheel.
295/30 19 ET40
https://www.willtheyfit.com/index.ph...=10&offset2=40
My idea is to get four (or actually six) 19x10 ET40 wheels and run 17mm spacers up front. This would give me great flexibility for square or staggered rubbers in different combinations.
Is ET40 optimal for 295 on 10"? Or should it be just a little bit further out? Not considering optics here, just track use.