Yes, there have been people running the 380mm rotors and 18inch wheels.
A few small posts on this forum, a few threads online if you search:
https://www.m3post.com/forums/showthread.php?t=659984
https://www.vwroc.com/forums/topic/1...18inch-wheels/
It's very wheel dependent, so you must be able to select wheels with good brake clearance, mainly barrel shape.