i have 215-35-18 tires on 18x7.5 (not sure what the offset is, i think its 38), its not “STRETCHED” but it does have a little bit of a “roll” to it on the sidewalls. however, i dont think it would be that easy to bend the rim at all. i would have to be stupid and hit a pool-sized pothole… it handles good, and looks great… i have friends with 225-35-18 profile tires and their sidewalls are much more flat comapred to mine.
“over-stretching” like in the pics of the VW and the AUDI can be dangerous to ride on.