I installed 215/70-15 XWX on ERA3014 two weeks ago. They definitely fit in the wheel wells and look great.
The exhaust will be tight. I started the car for the first time last weekend with abbreviated undercar exhaust: I put turndowns immediately aft of the mufflers so I can get the car to an exhaust shop for installation of the over-axle section and associated hangers. So I still may have some difficulty ahead when my exhaust guy tries to do this. But Peter assures me it's been done before with 215s.
Photo:
https://photos.google.com/share/AF1Q...NZQWNyY3k0MGRR