Will 275/40/18s fit in the rear?

[gatc]

Am planning to Hankook RS4s (ideally square) but found someone selling a pair of 275/40/18s and am curious if it will fit in the rear with minimal if not zero rubbing.

Currently running TCKLINE DA coilovers with bimmerworld spherical rear shock mounts.

I've seen people run 275/35/18 rear, but havent seen someone run a 275/40, so I'm not sure if ill encounter any rubbing issues during load (will be tracking the car and occasionally drive it spiritedly on the road)

I do know some brands run thinner/thicker than others, despite having the same size, so if you have any experience with a 275/40 rear; do chime in!

[gatc]

heres the pair i was looking at getting

[AWE46M3]

Great thread for all things tire size. 275/35/18 is the correct spec.

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/596-e46-m3-tire-sizing-thread

[CrisSilberGrau]

Short answer is no, unless you somehow want to make a square setup with this (highly unadvisable). Check out https://tiresize.com/calculator/ to see the size differential between a 35 and 40 sidewall tire with similar attributes.

40 sidewall 275 works on a 17" rim