wheel/tire combinations and fender clearance on 2018 C1

[vatra]

I have seen several websites that list a 185/55R15 tire on a 15x5.5 rim for a 2018 C1 AB40. I had this combination tested on the car at a tire shop at the front wheel well, and it just fit. However, I did not have a shock absorber/compression test and am worried about fender clearance when hitting bumps or potholes while going around a curve. Has anyone had this wheel/tire combination thoroughly tested on this car?

I have the same question regarding a 175/65R15 tire on a 5.0 inch rim. I was unable to find anyone who would do the compression test. And I could not find anyone who knows anything about thinner aftermarket fender-liners.

Thanks!